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 <redacted>
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(-)

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;
 };
 

-- 
2.40.1