| Message ID | 20230605144812.15241-2-tzimmermann@suse.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | fbdev: Make userspace interfaces optional | expand |
Thomas Zimmermann <tzimmermann@suse.de> writes: > Struct bd6107_platform_data refers to a platform device within > the Linux device hierarchy. The test in bd6107_backlight_check_fb() > compares it against the fbdev device in struct fb_info.dev, which > is different. Fix the test by comparing to struct fb_info.device. > > Fixes a bug in the backlight driver and prepares fbdev for making > struct fb_info.dev optional. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > Cc: Lee Jones <lee@kernel.org> > Cc: Daniel Thompson <daniel.thompson@linaro.org> > Cc: Jingoo Han <jingoohan1@gmail.com> > --- Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Thomas Zimmermann <tzimmermann@suse.de> writes: > Struct bd6107_platform_data refers to a platform device within > the Linux device hierarchy. The test in bd6107_backlight_check_fb() > compares it against the fbdev device in struct fb_info.dev, which > is different. Fix the test by comparing to struct fb_info.device. > > Fixes a bug in the backlight driver and prepares fbdev for making > struct fb_info.dev optional. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > Cc: Lee Jones <lee@kernel.org> > Cc: Daniel Thompson <daniel.thompson@linaro.org> > Cc: Jingoo Han <jingoohan1@gmail.com> > --- I agree with what was discussed in this thread, the check fix and rename could be split in separate patches to make it easier to understand what is changed. Regardless, feel free to add: Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff --git a/drivers/video/backlight/bd6107.c b/drivers/video/backlight/bd6107.c index f4db6c064635..fa3dd45c8f9d 100644 --- a/drivers/video/backlight/bd6107.c +++ b/drivers/video/backlight/bd6107.c @@ -104,7 +104,7 @@ static int bd6107_backlight_check_fb(struct backlight_device *backlight, { struct bd6107 *bd = bl_get_data(backlight); - return bd->pdata->fbdev == NULL || bd->pdata->fbdev == info->dev; + return !bd->pdata->dev || bd->pdata->dev == info->device; } static const struct backlight_ops bd6107_backlight_ops = { diff --git a/include/linux/platform_data/bd6107.h b/include/linux/platform_data/bd6107.h index 54a06a4d2618..596ca4f95cfa 100644 --- a/include/linux/platform_data/bd6107.h +++ b/include/linux/platform_data/bd6107.h @@ -8,7 +8,7 @@ struct device; struct bd6107_platform_data { - struct device *fbdev; + struct device *dev; unsigned int def_value; };
Struct bd6107_platform_data refers to a platform device within the Linux device hierarchy. The test in bd6107_backlight_check_fb() compares it against the fbdev device in struct fb_info.dev, which is different. Fix the test by comparing to struct fb_info.device. Fixes a bug in the backlight driver and prepares fbdev for making struct fb_info.dev optional. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Lee Jones <lee@kernel.org> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Jingoo Han <jingoohan1@gmail.com> --- drivers/video/backlight/bd6107.c | 2 +- include/linux/platform_data/bd6107.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)