video: fbdev: udlfb: fix kobj_to_dev.cocci warnings

 Use kobj_to_dev() instead of container_of()

Generated by: scripts/coccinelle/api/kobj_to_dev.cocci

Cc: Denis Efremov <efremov@linux.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Cc: Bernie Thompson <bernie@plugable.com>
[b.zolnierkie: minor patch summary fixup]
[b.zolnierkie: removed "Fixes:" tag (not in upstream tree)]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/alpine.DEB.2.22.394.2008262252270.2522@hadrien

drivers/video/fbdev/udlfb.c

@@ -1457,7 +1457,7 @@ static ssize_t edid_show(
 			struct file *filp,
 			struct kobject *kobj, struct bin_attribute *a,
 			 char *buf, loff_t off, size_t count) {
-	struct device *fbdev = container_of(kobj, struct device, kobj);
+	struct device *fbdev = kobj_to_dev(kobj);
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dlfb = fb_info->par;
 
@@ -1479,7 +1479,7 @@ static ssize_t edid_store(
 			struct file *filp,
 			struct kobject *kobj, struct bin_attribute *a,
 			char *src, loff_t src_off, size_t src_size) {
-	struct device *fbdev = container_of(kobj, struct device, kobj);
+	struct device *fbdev = kobj_to_dev(kobj);
 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
 	struct dlfb_data *dlfb = fb_info->par;
 	int ret;