[PATCH 1/3] ublk_drv: fix an IS_ERR() vs NULL check

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

The blk_mq_alloc_disk_for_queue() doesn't return error pointers, it
returns NULL on error.

Fixes: cebbe577cb17 ("ublk_drv: fix request queue leak")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/block/ublk_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index 52fd0af8a4f2..97725d13e4bd 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -1175,8 +1175,8 @@ static int ublk_add_dev(struct ublk_device *ub)
 
 	disk = ub->ub_disk = blk_mq_alloc_disk_for_queue(ub->ub_queue,
 						 &ublk_bio_compl_lkclass);
-	if (IS_ERR(disk)) {
-		err = PTR_ERR(disk);
+	if (!disk) {
+		err = -ENOMEM;
 		goto out_free_request_queue;
 	}
 
-- 
2.35.1