mac80211: clean up ieee80211_hw_config errors

Warn when ieee80211_hw_config returns an error, it shouldn't
happen; remove a number of printks that would happen in such
a case and one printk that is user-triggerable.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 742f811..29c4104 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -689,12 +689,8 @@
 		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
 	}
 
-	if (need_reconfig) {
+	if (need_reconfig)
 		ieee80211_hw_config(local);
-		/* The return value of hw_config is not of big interest here,
-		 * as it doesn't say that it failed because of _this_ config
-		 * change or something else. Ignore it. */
-	}
 
 	return 0;
 }