From 012a1b3e5e3561376dacf07efee15688284302c6 Mon Sep 17 00:00:00 2001 From: Holger Schurig Date: Fri, 11 Sep 2009 10:13:55 +0200 Subject: 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(+) (limited to 'net/wireless') diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 6c20b6515ab0..e5f92ee758f4 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; -- cgit v1.2.1