diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 58da7f6..72a47ce 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -342,12 +342,12 @@
 		sense = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
 		if (!sense)
 			return DRIVER_ERROR << 24;
-		memset(sense, 0, sizeof(*sense));
+		memset(sense, 0, SCSI_SENSE_BUFFERSIZE);
 	}
 	result = scsi_execute(sdev, cmd, data_direction, buffer, bufflen,
 				  sense, timeout, retries, 0);
 	if (sshdr)
-		scsi_normalize_sense(sense, sizeof(*sense), sshdr);
+		scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, sshdr);
 
 	kfree(sense);
 	return result;