mac80211: clean up uAPSD TX code

Clean up the code formatting and also replace
the constant 0 by IEEE80211_AC_VO.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 82389ad..b35d319 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -230,9 +230,9 @@
 	 * changed via debugfs, user needs to reassociate manually to have
 	 * everything in sync.
 	 */
-	if ((ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED)
-	    && (ifmgd->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
-	    && skb_get_queue_mapping(tx->skb) == 0)
+	if ((ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) &&
+	    (ifmgd->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) &&
+	    skb_get_queue_mapping(tx->skb) == IEEE80211_AC_VO)
 		return TX_CONTINUE;
 
 	if (local->hw.conf.flags & IEEE80211_CONF_PS) {