Thread (6 messages) 6 messages, 4 authors, 2011-06-15

re:Possible deadlock when suspending framebuffer

From: Wanlong Gao <hidden>
Date: 2011-06-15 01:09:38
Also in: lkml
Subsystem: framebuffer layer, the rest · Maintainers: Helge Deller, Linus Torvalds

<snip>
Hi Francis:
can you test this patch?
Thanks

From fe026c42af4cbdce053460a428a445e99071586a Mon Sep 17 00:00:00 2001
From: Wanlong Gao <redacted>
Date: Wed, 15 Jun 2011 09:03:41 +0800
Subject: [PATCH] test



Signed-off-by: Wanlong Gao <redacted>
---
 drivers/video/fbmem.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 5aac00e..6e6cef3 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1642,11 +1642,8 @@ static int do_unregister_framebuffer(struct
fb_info *fb_info)
 	if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info)
 		return -EINVAL;
 
-	if (!lock_fb_info(fb_info))
-		return -ENODEV;
 	event.info = fb_info;
 	ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event);
-	unlock_fb_info(fb_info);
 
 	if (ret)
 		return -EINVAL;
-- 
1.7.4.1

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