commit c41a24ce1fe13638732885859011321af862960a
author Jesper Juhl <jesper.juhl@gmail.com> Sat Mar 25 03:07:02 2006 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> Sat Mar 25 08:22:51 2006 -0800
tree 6fdf30f1fd5e2c92a10e2eab6c6db485aba340a0
parent 9a56c213929d83139fd1e12727e1037d71b519f8

[PATCH] ISDN: fix copy_to_user() unused result warning in isdn_ppp

   drivers/isdn/i4l/isdn_ppp.c:785: warning: ignoring return value of `copy_to_user', declared with attribute warn_unused_result

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/isdn/i4l/isdn_ppp.c

diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 1a19a0f..b9fed8a 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -782,7 +782,8 @@
 	is->first = b;
 
 	spin_unlock_irqrestore(&is->buflock, flags);
-	copy_to_user(buf, save_buf, count);
+	if (copy_to_user(buf, save_buf, count))
+		count = -EFAULT;
 	kfree(save_buf);
 
 	return count;