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authorHerbert Poetzl <herbert@13thfloor.at>2006-03-26 01:37:30 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-26 08:56:57 -0800
commit3e88c17d404c5787afd5bd1763380317f5ccbf84 (patch)
tree913f04bd00842b2b45ec2ead7ab93d16c037465b
parent22e6c1b39c648850438decd491f62d311800c7db (diff)
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[PATCH] loop: potential kernel hang waiting for kthread
Check that kernel_thread() succeeded, so we don't wait for something which cannot happen. Signed-off-by: Herbert Poetzl <herbert@13thfloor.at> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/block/loop.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 74bf0255e98..9c3b94e8f03 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -839,7 +839,9 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
set_blocksize(bdev, lo_blocksize);
- kernel_thread(loop_thread, lo, CLONE_KERNEL);
+ error = kernel_thread(loop_thread, lo, CLONE_KERNEL);
+ if (error < 0)
+ goto out_putf;
wait_for_completion(&lo->lo_done);
return 0;