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[PATCH] loop: potential kernel hang waiting for kthread

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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>
This commit is contained in:
Herbert Poetzl 2006-03-26 01:37:30 -08:00 committed by Linus Torvalds
parent 22e6c1b39c
commit 3e88c17d40
1 changed files with 3 additions and 1 deletions
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4
drivers/block/loop.c
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@ -839,7 +839,9 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
set_blocksize(bdev, lo_blocksize); 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); wait_for_completion(&lo->lo_done);
return 0; return 0;