V4L/DVB (6308): V4L: zc0301, remove bad usage of ERESTARTSYS

zc0301, remove bad usage of ERESTARTSYS down_read_trylock can't be interrupted and so ERESTARTSYS would reach userspace, which is not permitted. Change it to EAGAIN Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Luca Risolia <luca.risolia@studio.unibo.it> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
git-mirror · Oct 10, 2007 · c3e2a8e · c3e2a8e
1 parent 3abff55
commit c3e2a8e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/media/video/zc0301/zc0301_core.c b/drivers/media/video/zc0301/zc0301_core.c
@@ -655,7 +655,7 @@ static int zc0301_open(struct inode* inode, struct file* filp)
 	int err = 0;
 
 	if (!down_read_trylock(&zc0301_dev_lock))
-		return -ERESTARTSYS;
+		return -EAGAIN;
 
 	cam = video_get_drvdata(video_devdata(filp));