diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 1ad5202..87e3500 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1023,10 +1023,7 @@
 			int alloclen;
 
 			skb_prev = skb;
-			if (skb_prev)
-				fraggap = skb_prev->len - maxfraglen;
-			else
-				fraggap = 0;
+			fraggap = skb_prev->len - maxfraglen;
 
 			alloclen = fragheaderlen + hh_len + fraggap + 15;
 			skb = sock_wmalloc(sk, alloclen, 1, sk->sk_allocation);