From 8862dc5f25153a3c565a097220ed3de14ed72dfd Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Fri, 11 Sep 2009 10:13:55 +0200 Subject: [PATCH] cfg80211: minimal error handling for wext-compat freq scanning Signed-off-by: Holger Schurig Signed-off-by: John W. Linville --- net/wireless/scan.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 6c20b65..e5f92ee 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -675,6 +675,11 @@ int cfg80211_wext_siwscan(struct net_device *dev, wext_freq_not_found: ; } } + /* No channels found? */ + if (!i) { + err = -EINVAL; + goto out; + } /* Set real number of channels specified in creq->channels[] */ creq->n_channels = i; -- 1.8.2.3