| Message ID | 20210212205521.14280-1-Sergey.Semin@baikalelectronics.ru (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | [v7,1/3] usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement | expand |
Bjorn, Greg, Felippe, Andy, Any comments on this series? Bjorn, Greg you asked me to resend the patches related with the DW USB3 node name change. I did as you said, but no news since then. I'd be glad to have this patch accepted in some -next repo and forget about it. -Sergey On Fri, Feb 12, 2021 at 11:55:19PM +0300, Serge Semin wrote: > of_get_child_by_name() increments the reference counter of the OF node it > managed to find. So after the code is done using the device node, the > refcount must be decremented. Add missing of_node_put() invocation then > to the dwc3_qcom_of_register_core() method, since DWC3 OF node is being > used only there. > > Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") > Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> > > --- > > Note the patch will get cleanly applied on the commit 2bc02355f8ba ("usb: > dwc3: qcom: Add support for booting with ACPI"), while the bug has been > there since the Qualcomm DWC3 glue driver was submitted. > > Changelog v7: > - This is a new patch. Please drop it If I missed something and the OF > node refcount decrement wasn't supposed to be there. > --- > drivers/usb/dwc3/dwc3-qcom.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > > diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c > index c703d552bbcf..3564d00cdce3 100644 > --- a/drivers/usb/dwc3/dwc3-qcom.c > +++ b/drivers/usb/dwc3/dwc3-qcom.c > @@ -639,16 +639,19 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) > ret = of_platform_populate(np, NULL, NULL, dev); > if (ret) { > dev_err(dev, "failed to register dwc3 core - %d\n", ret); > - return ret; > + goto node_put; > } > > qcom->dwc3 = of_find_device_by_node(dwc3_np); > if (!qcom->dwc3) { > + ret = -ENODEV; > dev_err(dev, "failed to get dwc3 platform device\n"); > - return -ENODEV; > } > > - return 0; > +node_put: > + of_node_put(dwc3_np); > + > + return ret; > } > > static int dwc3_qcom_probe(struct platform_device *pdev) > -- > 2.30.0 >
On Thu, Feb 18, 2021 at 06:29:04PM +0300, Serge Semin wrote: > Bjorn, Greg, Felippe, Andy, > Any comments on this series? Bjorn, Greg you asked me to resend the > patches related with the DW USB3 node name change. I did as you said, > but no news since then. I'd be glad to have this patch accepted in > some -next repo and forget about it. Sorry, but it's the merge window right now and I can't add anything new until 5.12-rc1 is out. So can you wait until then? thanks, greg k-h
On Thu, Feb 18, 2021 at 04:32:29PM +0100, Greg Kroah-Hartman wrote: > On Thu, Feb 18, 2021 at 06:29:04PM +0300, Serge Semin wrote: > > Bjorn, Greg, Felippe, Andy, > > Any comments on this series? Bjorn, Greg you asked me to resend the > > patches related with the DW USB3 node name change. I did as you said, > > but no news since then. I'd be glad to have this patch accepted in > > some -next repo and forget about it. > > Sorry, but it's the merge window right now and I can't add anything new > until 5.12-rc1 is out. So can you wait until then? Well, I don't think there is another choice but to wait now.) Hopefully the patchset won't be forgotten when the merge window closes as that happened with the original series... -Sergey > > thanks, > > greg k-h
On Thu, Feb 18, 2021 at 06:40:51PM +0300, Serge Semin wrote: > On Thu, Feb 18, 2021 at 04:32:29PM +0100, Greg Kroah-Hartman wrote: > > On Thu, Feb 18, 2021 at 06:29:04PM +0300, Serge Semin wrote: > > > Bjorn, Greg, Felippe, Andy, > > > Any comments on this series? Bjorn, Greg you asked me to resend the > > > patches related with the DW USB3 node name change. I did as you said, > > > but no news since then. I'd be glad to have this patch accepted in > > > some -next repo and forget about it. > > > > > Sorry, but it's the merge window right now and I can't add anything new > > until 5.12-rc1 is out. So can you wait until then? > > Well, I don't think there is another choice but to wait now.) > Hopefully the patchset won't be forgotten when the merge window closes > as that happened with the original series... Can you resend this if still needed? I don't see them in my queue... thanks, greg k-h
Hi Greg, On Tue, Mar 23, 2021 at 12:29:17PM +0100, Greg Kroah-Hartman wrote: > On Thu, Feb 18, 2021 at 06:40:51PM +0300, Serge Semin wrote: > > On Thu, Feb 18, 2021 at 04:32:29PM +0100, Greg Kroah-Hartman wrote: > > > On Thu, Feb 18, 2021 at 06:29:04PM +0300, Serge Semin wrote: > > > > Bjorn, Greg, Felippe, Andy, > > > > Any comments on this series? Bjorn, Greg you asked me to resend the > > > > patches related with the DW USB3 node name change. I did as you said, > > > > but no news since then. I'd be glad to have this patch accepted in > > > > some -next repo and forget about it. > > > > > > > > Sorry, but it's the merge window right now and I can't add anything new > > > until 5.12-rc1 is out. So can you wait until then? > > > > Well, I don't think there is another choice but to wait now.) > > Hopefully the patchset won't be forgotten when the merge window closes > > as that happened with the original series... > > Can you resend this if still needed? I don't see them in my queue... I see the very first patch of this series has already been merged in somewhere between v5.12-rc3 and v5.12-rc2. See commit 1cffb1c66499 ("usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement"). But the rest of the patches still hanging up unattended. I'll resend them in a few minutes. Could you merge them in too? -Sergey > > thanks, > > greg k-h
On Wed, Mar 24, 2021 at 03:18:58PM +0300, Serge Semin wrote: > Hi Greg, > > On Tue, Mar 23, 2021 at 12:29:17PM +0100, Greg Kroah-Hartman wrote: > > On Thu, Feb 18, 2021 at 06:40:51PM +0300, Serge Semin wrote: > > > On Thu, Feb 18, 2021 at 04:32:29PM +0100, Greg Kroah-Hartman wrote: > > > > On Thu, Feb 18, 2021 at 06:29:04PM +0300, Serge Semin wrote: > > > > > Bjorn, Greg, Felippe, Andy, > > > > > Any comments on this series? Bjorn, Greg you asked me to resend the > > > > > patches related with the DW USB3 node name change. I did as you said, > > > > > but no news since then. I'd be glad to have this patch accepted in > > > > > some -next repo and forget about it. > > > > > > > > > > > Sorry, but it's the merge window right now and I can't add anything new > > > > until 5.12-rc1 is out. So can you wait until then? > > > > > > Well, I don't think there is another choice but to wait now.) > > > Hopefully the patchset won't be forgotten when the merge window closes > > > as that happened with the original series... > > > > > Can you resend this if still needed? I don't see them in my queue... > > I see the very first patch of this series has already been merged in > somewhere between v5.12-rc3 and v5.12-rc2. See commit 1cffb1c66499 ("usb: > dwc3: qcom: Add missing DWC3 OF node refcount decrement"). But the rest of > the patches still hanging up unattended. I'll resend them in a few minutes. > Could you merge them in too? Do you have a lore.kernel.org link to your resend, I don't see it... thanks, greg k-h
On Fri, Mar 26, 2021 at 02:34:23PM +0100, Greg Kroah-Hartman wrote: > On Wed, Mar 24, 2021 at 03:18:58PM +0300, Serge Semin wrote: > > Hi Greg, > > > > On Tue, Mar 23, 2021 at 12:29:17PM +0100, Greg Kroah-Hartman wrote: > > > On Thu, Feb 18, 2021 at 06:40:51PM +0300, Serge Semin wrote: > > > > On Thu, Feb 18, 2021 at 04:32:29PM +0100, Greg Kroah-Hartman wrote: > > > > > On Thu, Feb 18, 2021 at 06:29:04PM +0300, Serge Semin wrote: > > > > > > Bjorn, Greg, Felippe, Andy, > > > > > > Any comments on this series? Bjorn, Greg you asked me to resend the > > > > > > patches related with the DW USB3 node name change. I did as you said, > > > > > > but no news since then. I'd be glad to have this patch accepted in > > > > > > some -next repo and forget about it. > > > > > > > > > > > > > > Sorry, but it's the merge window right now and I can't add anything new > > > > > until 5.12-rc1 is out. So can you wait until then? > > > > > > > > Well, I don't think there is another choice but to wait now.) > > > > Hopefully the patchset won't be forgotten when the merge window closes > > > > as that happened with the original series... > > > > > > > > Can you resend this if still needed? I don't see them in my queue... > > > > I see the very first patch of this series has already been merged in > > somewhere between v5.12-rc3 and v5.12-rc2. See commit 1cffb1c66499 ("usb: > > dwc3: qcom: Add missing DWC3 OF node refcount decrement"). But the rest of > > the patches still hanging up unattended. I'll resend them in a few minutes. > > Could you merge them in too? > > Do you have a lore.kernel.org link to your resend, I don't see it... I've got the rest two patches back to the main series and resent it two days ago: https://lore.kernel.org/lkml/20210324204836.29668-1-Sergey.Semin@baikalelectronics.ru/ See the last two patches there. They have been part of the main series from the very first time I submitted it. But two months ago Bjorn asked me to detach Qcom-related ones and resubmit to take into account his comment. Since then I didn't hear any new update neither on these three patches nor on the main series except you merging in the very first Qcom-related patch (usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement). Since even being detached the patches left unattended I've decided to combine them back to ease the re-submission process. Note the patchset has been re-submitting for about five months already with no comments for the last three versions. -Sergey > > thanks, > > greg k-h
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index c703d552bbcf..3564d00cdce3 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -639,16 +639,19 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret); - return ret; + goto node_put; } qcom->dwc3 = of_find_device_by_node(dwc3_np); if (!qcom->dwc3) { + ret = -ENODEV; dev_err(dev, "failed to get dwc3 platform device\n"); - return -ENODEV; } - return 0; +node_put: + of_node_put(dwc3_np); + + return ret; } static int dwc3_qcom_probe(struct platform_device *pdev)
of_get_child_by_name() increments the reference counter of the OF node it managed to find. So after the code is done using the device node, the refcount must be decremented. Add missing of_node_put() invocation then to the dwc3_qcom_of_register_core() method, since DWC3 OF node is being used only there. Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> --- Note the patch will get cleanly applied on the commit 2bc02355f8ba ("usb: dwc3: qcom: Add support for booting with ACPI"), while the bug has been there since the Qualcomm DWC3 glue driver was submitted. Changelog v7: - This is a new patch. Please drop it If I missed something and the OF node refcount decrement wasn't supposed to be there. --- drivers/usb/dwc3/dwc3-qcom.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)