[PATCH 1/2] Return an error when SIWRATE doesn't match any rate

["Andrew Lutomirski" <andy@xxxxxxx>]

[Attached b/c my mailer will screw it up]

Currently mac80211 fails silently when trying to set a nonexistent
rate.  Return an error instead.

Signed-Off-By: Andy Lutomirski <luto@xxxxxxxxxxxxx>

diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index be80f44..8490dca 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -581,7 +581,7 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev,
 	sdata->bss->force_unicast_rateidx = -1;
 	if (rate->value < 0)
 		return 0;
-	for (i=0; i< mode->num_rates; i++) {
+	for (i=0; i < mode->num_rates; i++) {
 		struct ieee80211_rate *rates = &mode->rates[i];
 		int this_rate = rates->rate;
 
@@ -589,10 +589,10 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev,
 			sdata->bss->max_ratectrl_rateidx = i;
 			if (rate->fixed)
 				sdata->bss->force_unicast_rateidx = i;
-			break;
+			return 0;
 		}
 	}
-	return 0;
+	return -EINVAL;
 }
 
 static int ieee80211_ioctl_giwrate(struct net_device *dev,