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. v2: * move renames into separate patch (Javier, Sam, Michael) Fixes: 67b43e590415 ("backlight: Add ROHM BD6107 backlight driver") Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de> Cc: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com> Cc: Lee Jones <l...@kernel.org> Cc: Daniel Thompson <daniel.thomp...@linaro.org> Cc: Jingoo Han <jingooh...@gmail.com> Cc: dri-devel@lists.freedesktop.org Cc: <sta...@vger.kernel.org> # v3.12+ Reviewed-by: Javier Martinez Canillas <javi...@redhat.com> --- drivers/video/backlight/bd6107.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/backlight/bd6107.c b/drivers/video/backlight/bd6107.c index f4db6c064635b..e3410444ea235 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->fbdev == NULL || bd->pdata->fbdev == info->device; } static const struct backlight_ops bd6107_backlight_ops = { -- 2.41.0