Merge branch 'master'

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index dc9c772bc874..3ff538809786 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -97,7 +97,6 @@ int scsi_insert_special_req(struct scsi_request *sreq, int at_head)
 }
 
 static void scsi_run_queue(struct request_queue *q);
-static void scsi_release_buffers(struct scsi_cmnd *cmd);
 
 /*
  * Function:    scsi_unprep_request()
@@ -678,7 +677,7 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int uptodate,
         return NULL;
 }
 
-static struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, int gfp_mask)
+static struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
 {
         struct scsi_host_sg_pool *sgp;
         struct scatterlist *sgl;
@@ -1040,8 +1039,10 @@ static int scsi_init_io(struct scsi_cmnd *cmd)
          * if sg table allocation fails, requeue request later.
          */
         sgpnt = scsi_alloc_sgtable(cmd, GFP_ATOMIC);
-        if (unlikely(!sgpnt))
+        if (unlikely(!sgpnt)) {
+                scsi_unprep_request(req);
                 return BLKPREP_DEFER;
+        }
 
         cmd->request_buffer = (char *) sgpnt;
         cmd->request_bufflen = req->nr_sectors << 9;
@@ -1245,8 +1246,8 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
                  */
                 ret = scsi_init_io(cmd);
                 switch(ret) {
+                        /* For BLKPREP_KILL/DEFER the cmd was released */
                 case BLKPREP_KILL:
-                        /* BLKPREP_KILL return also releases the command */
                         goto kill;
                 case BLKPREP_DEFER:
                         goto defer;