usb: gadget: function: delete an unnecessary check before rndis_add_hdr()

Author: Markus Elfring <elfring@users.sourceforge.net>

The rndis_add_hdr() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring 
Signed-off-by: Felipe Balbi 
---
 drivers/usb/gadget/function/f_rndis.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
 
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index f13fc6a..829edf8 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -375,8 +375,7 @@ static struct sk_buff *rndis_add_header(struct gether *port,
 	struct sk_buff *skb2;
 
 	skb2 = skb_realloc_headroom(skb, sizeof(struct rndis_packet_msg_type));
-	if (skb2)
-		rndis_add_hdr(skb2);
+	rndis_add_hdr(skb2);
 
 	dev_kfree_skb(skb);
 	return skb2;