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cfg80211: minimal error handling for wext-compat freq scanning
author
Holger Schurig
<hs4233@mail.mn-solutions.de>
Fri, 11 Sep 2009 08:13:55 +0000
(10:13 +0200)
committer
John W. Linville
<linville@tuxdriver.com>
Mon, 14 Sep 2009 18:36:04 +0000
(14:36 -0400)
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
net/wireless/scan.c
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diff --git
a/net/wireless/scan.c
b/net/wireless/scan.c
index
6c20b65
..
e5f92ee
100644
(file)
--- 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;