3 files changed, 6 insertions, 0 deletions

diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index fea7e76a00de..ca831f741d89 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -722,6 +722,8 @@ static int pd_special_command(struct pd_unit *disk,
         int err = 0;
 
         rq = blk_get_request(disk->gd->queue, READ, __GFP_WAIT);
+        if (!rq)
+                return -ENODEV;
 
         rq->cmd_type = REQ_TYPE_SPECIAL;
         rq->special = func;
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 758ac442c5b5..7fa8c80e8982 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -704,6 +704,8 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *
 
         rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ?
                              WRITE : READ, __GFP_WAIT);
+        if (!rq)
+                return -ENODEV;
         blk_rq_set_block_pc(rq);
 
         if (cgc->buflen) {
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 5db8454474ee..4c433bf47a06 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1960,6 +1960,8 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
          * request becomes available
          */
         req = blk_get_request(sdev->request_queue, READ, GFP_KERNEL);
+        if (!req)
+                return;
 
         blk_rq_set_block_pc(req);