1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index d88824b3511c..898e67d30e56 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -46,7 +46,7 @@ void cypress_atacb_passthrough(struct scsi_cmnd *srb, struct us_data *us)
         }
 
         memcpy(save_cmnd, srb->cmnd, sizeof(save_cmnd));
-        memset(srb->cmnd, 0, sizeof(srb->cmnd));
+        memset(srb->cmnd, 0, MAX_COMMAND_SIZE);
 
         /* check if we support the command */
         if (save_cmnd[1] >> 5) /* MULTIPLE_COUNT */