Cumulative patch from commit b19c098e75d1dfa681960d9656d36001464a746e

b19c098 Send authentication failure reason in wpas_auth_failed()
5cd0e22 P2P: Iterate through full pref_chan list in search of a valid channel
f41d55d hostapd: Check for overlapping 20 MHz BSS before starting 20/40 MHz BSS
5516ed3 WPS: Deinit before wpas_p2p_disconnect()
c70c375 SCARD: Fix GSM authentication on USIM
c78c6b7 WPS: Fix return value when context is not valid
388444e P2P: Modify the timeout for GO Negotiation on no concurrent session
7e68be3 P2P: Refrain from performing extended listen during PD
e9eb648 P2P: Reject P2P_FIND and P2P_LISTEN on disabled interface
c71c241 P2P: Clear P2P state if active interface is disabled
ad12f2f Add DRIVER_EVENT ctrl_iface command for testing purposes
3e66f78 P2P: Make sure GO start does not miss connect_without_scan
c7caac5 nl80211: Fix send_frame freq for IBSS
28fa4eb P2P: Fix scan optimization for GO during persistent group invocation

Change-Id: I5b4d46322641de1a2d87e50a7f5fdc97f2f30c38
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/p2p/p2p_utils.c b/src/p2p/p2p_utils.c
index de47c12..06cb646 100644
--- a/src/p2p/p2p_utils.c
+++ b/src/p2p/p2p_utils.c
@@ -384,23 +384,14 @@
 			       const struct p2p_channels *channels)
 {
 	unsigned int i;
-	int freq = 0;
-
-	if (channels == NULL) {
-		if (p2p->cfg->num_pref_chan) {
-			freq = p2p_channel_to_freq(
-				p2p->cfg->pref_chan[0].op_class,
-				p2p->cfg->pref_chan[0].chan);
-			if (freq < 0)
-				freq = 0;
-		}
-		return freq;
-	}
+	int freq;
 
 	for (i = 0; p2p->cfg->pref_chan && i < p2p->cfg->num_pref_chan; i++) {
 		freq = p2p_channel_to_freq(p2p->cfg->pref_chan[i].op_class,
 					   p2p->cfg->pref_chan[i].chan);
-		if (p2p_channels_includes_freq(channels, freq))
+		if (freq <= 0)
+			continue;
+		if (!channels || p2p_channels_includes_freq(channels, freq))
 			return freq;
 	}