X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=net%2Fmac80211%2Ftx.c;h=de8548bf0a7f27cef20e06077d3c603ad22a7baa;hb=1c82315a12144cde732636e259d39e3ee81b3c5b;hp=5b9602b6240520844b45f6c6b2b293ac8e9ecfb0;hpb=bbbd27e694ce2c5fde9c8fcedbea618dd9153fe7;p=firefly-linux-kernel-4.4.55.git

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 5b9602b62405..de8548bf0a7f 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2017,24 +2017,14 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		skb = skb_clone(skb, GFP_ATOMIC);
 		if (skb) {
 			unsigned long flags;
-			int id, r;
+			int id;
 
 			spin_lock_irqsave(&local->ack_status_lock, flags);
-			r = idr_get_new_above(&local->ack_status_frames,
-					      orig_skb, 1, &id);
-			if (r == -EAGAIN) {
-				idr_pre_get(&local->ack_status_frames,
-					    GFP_ATOMIC);
-				r = idr_get_new_above(&local->ack_status_frames,
-						      orig_skb, 1, &id);
-			}
-			if (WARN_ON(!id) || id > 0xffff) {
-				idr_remove(&local->ack_status_frames, id);
-				r = -ERANGE;
-			}
+			id = idr_alloc(&local->ack_status_frames, orig_skb,
+				       1, 0x10000, GFP_ATOMIC);
 			spin_unlock_irqrestore(&local->ack_status_lock, flags);
 
-			if (!r) {
+			if (id >= 0) {
 				info_id = id;
 				info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
 			} else if (skb_shared(skb)) {