staging: emxx_udc: Remove null check before kfree

This patch was generated by the following semantic patch:

// <smpl>
@@ expression E; @@
- if (E != NULL) { kfree(E); }
+ kfree(E);
@@ expression E; @@
- if (E != NULL) { kfree(E); E = NULL; }
+ kfree(E);
+ E = NULL;
// </smpl>

Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/emxx_udc/emxx_udc.c

@@ -2722,8 +2722,7 @@ static void nbu2ss_ep_free_request(
 	if (_req != NULL) {
 		req = container_of(_req, struct nbu2ss_req, req);
 
-		if (req != NULL)
-			kfree(req);
+		kfree(req);
 	}
 }