diff --git a/[refs] b/[refs]
index ffc4f65cbf4f..b89987d80549 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5911e963d3718e306bcac387b83e259aa4228896
+refs/heads/master: b5b515445f4f5a905c5dd27e6e682868ccd6c09d
diff --git a/trunk/drivers/scsi/pmcraid.c b/trunk/drivers/scsi/pmcraid.c
index fca6a8953070..d079f9a3c6b3 100644
--- a/trunk/drivers/scsi/pmcraid.c
+++ b/trunk/drivers/scsi/pmcraid.c
@@ -3871,6 +3871,9 @@ static long pmcraid_ioctl_passthrough(
 			pmcraid_err("couldn't build passthrough ioadls\n");
 			goto out_free_buffer;
 		}
+	} else if (request_size < 0) {
+		rc = -EINVAL;
+		goto out_free_buffer;
 	}
 
 	/* If data is being written into the device, copy the data from user