1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 743f67ed7640..3ac4890ce086 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -410,6 +410,7 @@ int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd,
                 goto free_req;
 
         req->cmd_len = cmd_len;
+        memset(req->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */
         memcpy(req->cmd, cmd, req->cmd_len);
         req->sense = sioc->sense;
         req->sense_len = 0;
@@ -1084,7 +1085,7 @@ static void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd)
 {
         struct request *req = cmd->request;
 
-        BUG_ON(sizeof(req->cmd) > sizeof(cmd->cmnd));
+        BUILD_BUG_ON(sizeof(req->cmd) > sizeof(cmd->cmnd));
         memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd));
         cmd->cmd_len = req->cmd_len;
         if (!req->data_len)