Commit 77291852 authored Oct 30, 2016 by Christophe JAILLET Committed by Jens Axboe Nov 06, 2016

nbd: Fix error handling



'blk_mq_alloc_request()' returns an error pointer in case of error, not
NULL. So test it with IS_ERR.

Fixes: 	fd8383fd ("nbd: convert to blkmq")

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent bc33b0ca

drivers/block/nbd.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -599,7 +599,7 @@ static int __nbd_ioctl(struct block_device bdev, struct nbd_device nbd,
		return -EINVAL;

		sreq = blk_mq_alloc_request(bdev_get_queue(bdev), WRITE, 0);
		if (!sreq)
		if (IS_ERR(sreq))
		return -ENOMEM;

		mutex_unlock(&nbd->tx_lock);