cciss: Handle failure of blk_init_queue gracefully in cciss_add_disk.

Handle failure of blk_init_queue gracefully in cciss_add_disk.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 2810dd9805a..b1211d530da 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1690,6 +1690,8 @@ static int cciss_add_disk(ctlr_info_t *h, struct gendisk *disk,
                                 int drv_index)
 {
         disk->queue = blk_init_queue(do_cciss_request, &h->lock);
+        if (!disk->queue)
+                goto init_queue_failure;
         sprintf(disk->disk_name, "cciss/c%dd%d", h->ctlr, drv_index);
         disk->major = h->major;
         disk->first_minor = drv_index << NWD_SHIFT;
@@ -1730,6 +1732,7 @@ static int cciss_add_disk(ctlr_info_t *h, struct gendisk *disk,
 cleanup_queue:
         blk_cleanup_queue(disk->queue);
         disk->queue = NULL;
+init_queue_failure:
         return -1;
 }