slsm: shorten sizeof by using the variable name

security/slsm/lsm.c

@@ -31,7 +31,7 @@ struct passt_task {
  * Returns the new passt_task or NULL if there's no memory available
  */
 static struct passt_task *passt_dup_task(const struct passt_task *old_pt, gfp_t gfp) {
-	struct passt_task *pt = kmemdup(old_pt, sizeof(struct passt_task), gfp);
+	struct passt_task *pt = kmemdup(old_pt, sizeof(*pt), gfp);
 	if (!pt)
 		return NULL;