| Message ID | 20240209-bus_cleanup-media2-v1-1-8037c73bf688@marliere.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: bt8xx: make bttv_sub_bus_type const | expand |
On Fri, Feb 09, 2024 at 08:27:48PM -0300, Ricardo B. Marliere wrote: > Now that the driver core can properly handle constant struct bus_type, > move the bttv_sub_bus_type variable to be a constant structure as well, > placing it into read-only memory which can not be modified at runtime. > > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/media/pci/bt8xx/bttv-gpio.c b/drivers/media/pci/bt8xx/bttv-gpio.c index a2b18e2bed1b..6b7fea50328c 100644 --- a/drivers/media/pci/bt8xx/bttv-gpio.c +++ b/drivers/media/pci/bt8xx/bttv-gpio.c @@ -55,7 +55,7 @@ static void bttv_sub_remove(struct device *dev) sub->remove(sdev); } -struct bus_type bttv_sub_bus_type = { +const struct bus_type bttv_sub_bus_type = { .name = "bttv-sub", .match = &bttv_sub_bus_match, .probe = bttv_sub_probe, diff --git a/drivers/media/pci/bt8xx/bttvp.h b/drivers/media/pci/bt8xx/bttvp.h index 0368a583cf07..a534e63b9a37 100644 --- a/drivers/media/pci/bt8xx/bttvp.h +++ b/drivers/media/pci/bt8xx/bttvp.h @@ -234,7 +234,7 @@ int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f); /* ---------------------------------------------------------- */ /* bttv-gpio.c */ -extern struct bus_type bttv_sub_bus_type; +extern const struct bus_type bttv_sub_bus_type; int bttv_sub_add_device(struct bttv_core *core, char *name); int bttv_sub_del_devices(struct bttv_core *core);
Now that the driver core can properly handle constant struct bus_type, move the bttv_sub_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> --- drivers/media/pci/bt8xx/bttv-gpio.c | 2 +- drivers/media/pci/bt8xx/bttvp.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) --- base-commit: feb8831be9d468ee961289c6a275536a1ee0011c change-id: 20240209-bus_cleanup-media2-a36e816cbc0d Best regards,