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authorHolger Schurig <hs4233@mail.mn-solutions.de>2009-09-11 10:13:55 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-09-23 11:35:39 -0400
commit012a1b3e5e3561376dacf07efee15688284302c6 (patch)
tree9970293afe1d5a390573e32035cf8719a7ba7e16
parent50425b0977c53c6ac608f0b2c8a562a5c7cd5602 (diff)
cfg80211: minimal error handling for wext-compat freq scanning
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/wireless/scan.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 6c20b6515ab..e5f92ee758f 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;