cfg80211: handle failed skb allocation

Handle the case when dev_alloc_skb returns NULL. Cc: [email protected] Fixes: 2b67f94 ("cfg80211: reuse existing page fragments in A-MSDU rx") Signed-off-by: Gregory Greenman <[email protected]> Signed-off-by: Luca Coelho <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
ambv · Jul 6, 2016 · 16a910a · 16a910a
1 parent 6e8ef84
commit 16a910a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/net/wireless/util.c b/net/wireless/util.c
@@ -721,6 +721,8 @@ __ieee80211_amsdu_copy(struct sk_buff *skb, unsigned int hlen,
 	 * alignment since sizeof(struct ethhdr) is 14.
 	 */
 	frame = dev_alloc_skb(hlen + sizeof(struct ethhdr) + 2 + cur_len);
+	if (!frame)
+		return NULL;
 
 	skb_reserve(frame, hlen + sizeof(struct ethhdr) + 2);
 	skb_copy_bits(skb, offset, skb_put(frame, cur_len), cur_len);