Commit 3e88c17d authored by Herbert Poetzl's avatar Herbert Poetzl Committed by Linus Torvalds
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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: default avatarHerbert Poetzl <herbert@13thfloor.at>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 22e6c1b3

drivers/block/loop.c

+3 −1
Original line number Diff line number Diff line
@@ -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;