1 files changed, 21 insertions, 6 deletions

diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index dbddff8174e5..15d25ccd51a5 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -207,20 +207,34 @@ static int bsg_init_rq(struct request_queue *q, struct request *req, gfp_t gfp)
         struct bsg_job *job = blk_mq_rq_to_pdu(req);
         struct scsi_request *sreq = &job->sreq;
 
+        /* called right after the request is allocated for the request_queue */
+
+        sreq->sense = kzalloc(SCSI_SENSE_BUFFERSIZE, gfp);
+        if (!sreq->sense)
+                return -ENOMEM;
+
+        return 0;
+}
+
+static void bsg_initialize_rq(struct request *req)
+{
+        struct bsg_job *job = blk_mq_rq_to_pdu(req);
+        struct scsi_request *sreq = &job->sreq;
+        void *sense = sreq->sense;
+
+        /* called right before the request is given to the request_queue user */
+
         memset(job, 0, sizeof(*job));
 
         scsi_req_init(sreq);
+
+        sreq->sense = sense;
         sreq->sense_len = SCSI_SENSE_BUFFERSIZE;
-        sreq->sense = kzalloc(sreq->sense_len, gfp);
-        if (!sreq->sense)
-                return -ENOMEM;
 
         job->req = req;
-        job->reply = sreq->sense;
+        job->reply = sense;
         job->reply_len = sreq->sense_len;
         job->dd_data = job + 1;
-
-        return 0;
 }
 
 static void bsg_exit_rq(struct request_queue *q, struct request *req)
@@ -251,6 +265,7 @@ struct request_queue *bsg_setup_queue(struct device *dev, const char *name,
         q->cmd_size = sizeof(struct bsg_job) + dd_job_size;
         q->init_rq_fn = bsg_init_rq;
         q->exit_rq_fn = bsg_exit_rq;
+        q->initialize_rq_fn = bsg_initialize_rq;
         q->request_fn = bsg_request_fn;
 
         ret = blk_init_allocated_queue(q);