1 files changed, 15 insertions, 6 deletions

diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index c6ce416ab587..0dff12a1daef 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1046,20 +1046,29 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
 int
 fb_blank(struct fb_info *info, int blank)
 {	
- 	int ret = -EINVAL;
+	struct fb_event event;
+	int ret = -EINVAL, early_ret;
 
  	if (blank > FB_BLANK_POWERDOWN)
  		blank = FB_BLANK_POWERDOWN;
 
+	event.info = info;
+	event.data = ␣
+
+	early_ret = fb_notifier_call_chain(FB_EARLY_EVENT_BLANK, &event);
+
 	if (info->fbops->fb_blank)
  		ret = info->fbops->fb_blank(blank, info);
 
- 	if (!ret) {
-		struct fb_event event;
-
-		event.info = info;
-		event.data = ␣
+	if (!ret)
 		fb_notifier_call_chain(FB_EVENT_BLANK, &event);
+	else {
+		/*
+		 * if fb_blank is failed then revert effects of
+		 * the early blank event.
+		 */
+		if (!early_ret)
+			fb_notifier_call_chain(FB_R_EARLY_EVENT_BLANK, &event);
 	}
 
  	return ret;