If blk_mq_alloc_request() fails then it leads to an error pointer
dereference.
Fixes: 600335205b8d ("ide: convert to blk-mq")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/ide/ide-atapi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index da58020a144e..6eea0a661240 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -200,6 +200,8 @@ void ide_prep_sense(ide_drive_t *drive, struct request *rq)
if (!sense_rq) {
sense_rq = blk_mq_alloc_request(drive->queue, REQ_OP_DRV_IN,
BLK_MQ_REQ_RESERVED | BLK_MQ_REQ_NOWAIT);
+ if (IS_ERR(sense_rq))
+ return;
drive->sense_rq = sense_rq;
}
req = scsi_req(sense_rq);
--
2.11.0
