| Message ID | 4c9a8c7f6b4eb879dd7ef4d44bb6a80b3f126d25.1693070958.git.christophe.jaillet@wanadoo.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Jiri Kosina |
| Headers | show |
| Series | HID: nvidia-shield: Fix the error handling path of shield_probe() | expand |
Hi Christophe,
kernel test robot noticed the following build warnings:
[auto build test WARNING on linux-next/master]
[cannot apply to linus/master v6.5-rc7]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Christophe-JAILLET/HID-nvidia-shield-Fix-a-missing-led_classdev_unregister-in-the-probe-error-handling-path/20230827-014602
base: linux-next/master
patch link: https://lore.kernel.org/r/4c9a8c7f6b4eb879dd7ef4d44bb6a80b3f126d25.1693070958.git.christophe.jaillet%40wanadoo.fr
patch subject: [PATCH 3/3] HID: nvidia-shield: Introduce thunderstrike_destroy()
config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20230827/202308270307.EDe7t62T-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230827/202308270307.EDe7t62T-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308270307.EDe7t62T-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/hid/hid-nvidia-shield.c: In function 'shield_probe':
>> drivers/hid/hid-nvidia-shield.c:1046:31: warning: variable 'ts' set but not used [-Wunused-but-set-variable]
1046 | struct thunderstrike *ts;
| ^~
vim +/ts +1046 drivers/hid/hid-nvidia-shield.c
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1042
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1043 static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id)
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1044 {
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1045 struct shield_device *shield_dev = NULL;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 @1046 struct thunderstrike *ts;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1047 int ret;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1048
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1049 ret = hid_parse(hdev);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1050 if (ret) {
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1051 hid_err(hdev, "Parse failed\n");
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1052 return ret;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1053 }
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1054
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1055 switch (id->product) {
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1056 case USB_DEVICE_ID_NVIDIA_THUNDERSTRIKE_CONTROLLER:
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1057 shield_dev = thunderstrike_create(hdev);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1058 break;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1059 }
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1060
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1061 if (unlikely(!shield_dev)) {
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1062 hid_err(hdev, "Failed to identify SHIELD device\n");
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1063 return -ENODEV;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1064 }
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1065 if (IS_ERR(shield_dev)) {
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1066 hid_err(hdev, "Failed to create SHIELD device\n");
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1067 return PTR_ERR(shield_dev);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1068 }
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1069
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1070 ts = container_of(shield_dev, struct thunderstrike, base);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1071
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1072 ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1073 if (ret) {
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1074 hid_err(hdev, "Failed to start HID device\n");
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1075 goto err_haptics;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1076 }
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1077
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1078 ret = hid_hw_open(hdev);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1079 if (ret) {
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1080 hid_err(hdev, "Failed to open HID device\n");
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1081 goto err_stop;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1082 }
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1083
3ab196f882377ed Rahul Rameshbabu 2023-08-07 1084 thunderstrike_device_init_info(shield_dev);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1085
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1086 return ret;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1087
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1088 err_stop:
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1089 hid_hw_stop(hdev);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1090 err_haptics:
2cc4637842495c6 Christophe JAILLET 2023-08-26 1091 thunderstrike_destroy(hdev);
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1092 return ret;
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1093 }
09308562d4afb1a Rahul Rameshbabu 2023-06-08 1094
Le 26/08/2023 à 22:00, kernel test robot a écrit : > Hi Christophe, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on linux-next/master] > [cannot apply to linus/master v6.5-rc7] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use '--base' as documented in > https://git-scm.com/docs/git-format-patch#_base_tree_information] > > url: https://github.com/intel-lab-lkp/linux/commits/Christophe-JAILLET/HID-nvidia-shield-Fix-a-missing-led_classdev_unregister-in-the-probe-error-handling-path/20230827-014602 > base: linux-next/master > patch link: https://lore.kernel.org/r/4c9a8c7f6b4eb879dd7ef4d44bb6a80b3f126d25.1693070958.git.christophe.jaillet%40wanadoo.fr > patch subject: [PATCH 3/3] HID: nvidia-shield: Introduce thunderstrike_destroy() > config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20230827/202308270307.EDe7t62T-lkp@intel.com/config) > compiler: hppa-linux-gcc (GCC) 13.2.0 On x86_64, gcc 12.3.0 does not complain. :( Let see first if there is some comment on the serie, then I'll send a v2 to fix the warning. CJ > reproduce: (https://download.01.org/0day-ci/archive/20230827/202308270307.EDe7t62T-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot <lkp@intel.com> > | Closes: https://lore.kernel.org/oe-kbuild-all/202308270307.EDe7t62T-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > drivers/hid/hid-nvidia-shield.c: In function 'shield_probe': >>> drivers/hid/hid-nvidia-shield.c:1046:31: warning: variable 'ts' set but not used [-Wunused-but-set-variable] > 1046 | struct thunderstrike *ts; > | ^~ > > > vim +/ts +1046 drivers/hid/hid-nvidia-shield.c > > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1042 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1043 static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id) > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1044 { > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1045 struct shield_device *shield_dev = NULL; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 @1046 struct thunderstrike *ts; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1047 int ret; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1048 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1049 ret = hid_parse(hdev); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1050 if (ret) { > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1051 hid_err(hdev, "Parse failed\n"); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1052 return ret; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1053 } > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1054 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1055 switch (id->product) { > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1056 case USB_DEVICE_ID_NVIDIA_THUNDERSTRIKE_CONTROLLER: > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1057 shield_dev = thunderstrike_create(hdev); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1058 break; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1059 } > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1060 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1061 if (unlikely(!shield_dev)) { > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1062 hid_err(hdev, "Failed to identify SHIELD device\n"); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1063 return -ENODEV; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1064 } > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1065 if (IS_ERR(shield_dev)) { > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1066 hid_err(hdev, "Failed to create SHIELD device\n"); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1067 return PTR_ERR(shield_dev); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1068 } > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1069 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1070 ts = container_of(shield_dev, struct thunderstrike, base); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1071 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1072 ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1073 if (ret) { > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1074 hid_err(hdev, "Failed to start HID device\n"); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1075 goto err_haptics; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1076 } > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1077 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1078 ret = hid_hw_open(hdev); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1079 if (ret) { > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1080 hid_err(hdev, "Failed to open HID device\n"); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1081 goto err_stop; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1082 } > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1083 > 3ab196f882377ed Rahul Rameshbabu 2023-08-07 1084 thunderstrike_device_init_info(shield_dev); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1085 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1086 return ret; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1087 > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1088 err_stop: > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1089 hid_hw_stop(hdev); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1090 err_haptics: > 2cc4637842495c6 Christophe JAILLET 2023-08-26 1091 thunderstrike_destroy(hdev); > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1092 return ret; > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1093 } > 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1094 >
Hi Christophe,
kernel test robot noticed the following build warnings:
[auto build test WARNING on linux-next/master]
[cannot apply to linus/master v6.5-rc7]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Christophe-JAILLET/HID-nvidia-shield-Fix-a-missing-led_classdev_unregister-in-the-probe-error-handling-path/20230827-014602
base: linux-next/master
patch link: https://lore.kernel.org/r/4c9a8c7f6b4eb879dd7ef4d44bb6a80b3f126d25.1693070958.git.christophe.jaillet%40wanadoo.fr
patch subject: [PATCH 3/3] HID: nvidia-shield: Introduce thunderstrike_destroy()
config: i386-buildonly-randconfig-003-20230827 (https://download.01.org/0day-ci/archive/20230827/202308270516.Ch4MucBs-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce: (https://download.01.org/0day-ci/archive/20230827/202308270516.Ch4MucBs-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308270516.Ch4MucBs-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/hid/hid-nvidia-shield.c:1046:24: warning: variable 'ts' set but not used [-Wunused-but-set-variable]
struct thunderstrike *ts;
^
1 warning generated.
vim +/ts +1046 drivers/hid/hid-nvidia-shield.c
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1042
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1043 static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id)
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1044 {
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1045 struct shield_device *shield_dev = NULL;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 @1046 struct thunderstrike *ts;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1047 int ret;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1048
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1049 ret = hid_parse(hdev);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1050 if (ret) {
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1051 hid_err(hdev, "Parse failed\n");
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1052 return ret;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1053 }
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1054
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1055 switch (id->product) {
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1056 case USB_DEVICE_ID_NVIDIA_THUNDERSTRIKE_CONTROLLER:
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1057 shield_dev = thunderstrike_create(hdev);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1058 break;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1059 }
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1060
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1061 if (unlikely(!shield_dev)) {
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1062 hid_err(hdev, "Failed to identify SHIELD device\n");
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1063 return -ENODEV;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1064 }
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1065 if (IS_ERR(shield_dev)) {
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1066 hid_err(hdev, "Failed to create SHIELD device\n");
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1067 return PTR_ERR(shield_dev);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1068 }
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1069
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1070 ts = container_of(shield_dev, struct thunderstrike, base);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1071
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1072 ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1073 if (ret) {
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1074 hid_err(hdev, "Failed to start HID device\n");
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1075 goto err_haptics;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1076 }
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1077
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1078 ret = hid_hw_open(hdev);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1079 if (ret) {
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1080 hid_err(hdev, "Failed to open HID device\n");
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1081 goto err_stop;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1082 }
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1083
3ab196f882377e Rahul Rameshbabu 2023-08-07 1084 thunderstrike_device_init_info(shield_dev);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1085
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1086 return ret;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1087
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1088 err_stop:
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1089 hid_hw_stop(hdev);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1090 err_haptics:
2cc4637842495c Christophe JAILLET 2023-08-26 1091 thunderstrike_destroy(hdev);
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1092 return ret;
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1093 }
09308562d4afb1 Rahul Rameshbabu 2023-06-08 1094
On Sat, 26 Aug, 2023 23:13:01 +0200 Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote: > Le 26/08/2023 à 22:00, kernel test robot a écrit : >> Hi Christophe, >> kernel test robot noticed the following build warnings: >> [auto build test WARNING on linux-next/master] >> [cannot apply to linus/master v6.5-rc7] >> [If your patch is applied to the wrong git tree, kindly drop us a note. >> And when submitting patch, we suggest to use '--base' as documented in >> https://git-scm.com/docs/git-format-patch#_base_tree_information] >> url: >> https://github.com/intel-lab-lkp/linux/commits/Christophe-JAILLET/HID-nvidia-shield-Fix-a-missing-led_classdev_unregister-in-the-probe-error-handling-path/20230827-014602 >> base: linux-next/master >> patch link: https://lore.kernel.org/r/4c9a8c7f6b4eb879dd7ef4d44bb6a80b3f126d25.1693070958.git.christophe.jaillet%40wanadoo.fr >> patch subject: [PATCH 3/3] HID: nvidia-shield: Introduce thunderstrike_destroy() >> config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20230827/202308270307.EDe7t62T-lkp@intel.com/config) >> compiler: hppa-linux-gcc (GCC) 13.2.0 > > On x86_64, gcc 12.3.0 does not complain. :( The key to getting gcc to spew the warning is passing W=1 for the make variable to get the compiler to invoke the unused warning. [nix-shell:~/Documents/linux]$ make help | grep -i W= make W=n [targets] Enable extra build checks, n=1,2,3 where Multiple levels can be combined with W=12 or W=123 linux on cjaillet/shield-fixup [?] via ❄️ impure (linux-6.1.31) ❯ make -C $dev/lib/modules/*/build M=$(pwd)/drivers/hid W=1 modules CC [M] /home/binary-eater/Documents/linux/drivers/hid/hid-nvidia-shield.o /home/binary-eater/Documents/linux/drivers/hid/hid-nvidia-shield.c: In function ‘shield_probe’: /home/binary-eater/Documents/linux/drivers/hid/hid-nvidia-shield.c:1046:31: warning: variable ‘ts’ set but not used [-Wunused-but-set-variable] 1046 | struct thunderstrike *ts; | ^~ MODPOST /home/binary-eater/Documents/linux/drivers/hid/Module.symvers CC [M] /home/binary-eater/Documents/linux/drivers/hid/hid-nvidia-shield.mod.o LD [M] /home/binary-eater/Documents/linux/drivers/hid/hid-nvidia-shield.ko BTF [M] /home/binary-eater/Documents/linux/drivers/hid/hid-nvidia-shield.ko linux on cjaillet/shield-fixup [?] via ❄️ impure (linux-6.1.31) took 4s ❯ gcc --version gcc (GCC) 12.2.0 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Hope this is helpful. -- Rahul Rameshbabu > > Let see first if there is some comment on the serie, then I'll send a v2 to fix > the warning. > > CJ > >> reproduce: (https://download.01.org/0day-ci/archive/20230827/202308270307.EDe7t62T-lkp@intel.com/reproduce) >> If you fix the issue in a separate patch/commit (i.e. not just a new version >> of >> the same patch/commit), kindly add following tags >> | Reported-by: kernel test robot <lkp@intel.com> >> | Closes: https://lore.kernel.org/oe-kbuild-all/202308270307.EDe7t62T-lkp@intel.com/ >> All warnings (new ones prefixed by >>): >> drivers/hid/hid-nvidia-shield.c: In function 'shield_probe': >>>> drivers/hid/hid-nvidia-shield.c:1046:31: warning: variable 'ts' set but not used [-Wunused-but-set-variable] >> 1046 | struct thunderstrike *ts; >> | ^~ >> vim +/ts +1046 drivers/hid/hid-nvidia-shield.c >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1042 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1043 static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id) >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1044 { >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1045 struct shield_device *shield_dev = NULL; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 @1046 struct thunderstrike *ts; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1047 int ret; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1048 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1049 ret = hid_parse(hdev); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1050 if (ret) { >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1051 hid_err(hdev, "Parse failed\n"); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1052 return ret; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1053 } >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1054 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1055 switch (id->product) { >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1056 case USB_DEVICE_ID_NVIDIA_THUNDERSTRIKE_CONTROLLER: >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1057 shield_dev = thunderstrike_create(hdev); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1058 break; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1059 } >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1060 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1061 if (unlikely(!shield_dev)) { >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1062 hid_err(hdev, "Failed to identify SHIELD device\n"); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1063 return -ENODEV; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1064 } >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1065 if (IS_ERR(shield_dev)) { >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1066 hid_err(hdev, "Failed to create SHIELD device\n"); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1067 return PTR_ERR(shield_dev); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1068 } >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1069 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1070 ts = container_of(shield_dev, struct thunderstrike, base); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1071 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1072 ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1073 if (ret) { >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1074 hid_err(hdev, "Failed to start HID device\n"); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1075 goto err_haptics; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1076 } >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1077 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1078 ret = hid_hw_open(hdev); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1079 if (ret) { >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1080 hid_err(hdev, "Failed to open HID device\n"); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1081 goto err_stop; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1082 } >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1083 >> 3ab196f882377ed Rahul Rameshbabu 2023-08-07 1084 thunderstrike_device_init_info(shield_dev); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1085 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1086 return ret; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1087 >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1088 err_stop: >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1089 hid_hw_stop(hdev); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1090 err_haptics: >> 2cc4637842495c6 Christophe JAILLET 2023-08-26 1091 thunderstrike_destroy(hdev); >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1092 return ret; >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1093 } >> 09308562d4afb1a Rahul Rameshbabu 2023-06-08 1094 >>
diff --git a/drivers/hid/hid-nvidia-shield.c b/drivers/hid/hid-nvidia-shield.c index 849b3f8409a0..4e39e7c1a2c3 100644 --- a/drivers/hid/hid-nvidia-shield.c +++ b/drivers/hid/hid-nvidia-shield.c @@ -915,6 +915,20 @@ static struct shield_device *thunderstrike_create(struct hid_device *hdev) return ERR_PTR(ret); } +static void thunderstrike_destroy(struct hid_device *hdev) +{ + struct shield_device *dev = hid_get_drvdata(hdev); + struct thunderstrike *ts; + + ts = container_of(dev, struct thunderstrike, base); + + power_supply_unregister(ts->base.battery_dev.psy); + if (ts->haptics_dev) + input_unregister_device(ts->haptics_dev); + led_classdev_unregister(&ts->led_dev); + ida_free(&thunderstrike_ida, ts->id); +} + static int android_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, @@ -1074,11 +1088,7 @@ static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id) err_stop: hid_hw_stop(hdev); err_haptics: - power_supply_unregister(ts->base.battery_dev.psy); - if (ts->haptics_dev) - input_unregister_device(ts->haptics_dev); - led_classdev_unregister(&ts->led_dev); - ida_free(&thunderstrike_ida, ts->id); + thunderstrike_destroy(hdev); return ret; } @@ -1090,11 +1100,7 @@ static void shield_remove(struct hid_device *hdev) ts = container_of(dev, struct thunderstrike, base); hid_hw_close(hdev); - power_supply_unregister(dev->battery_dev.psy); - if (ts->haptics_dev) - input_unregister_device(ts->haptics_dev); - led_classdev_unregister(&ts->led_dev); - ida_free(&thunderstrike_ida, ts->id); + thunderstrike_destroy(hdev); del_timer_sync(&ts->psy_stats_timer); cancel_work_sync(&ts->hostcmd_req_work); hid_hw_stop(hdev);
In order to simplify some error handling paths, and avoid code duplication introduce thunderstrike_destroy() which undoes thunderstrike_create(). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- drivers/hid/hid-nvidia-shield.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-)