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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>
This commit is contained in:
Holger Schurig 2009-09-11 10:13:55 +02:00 committed by John W. Linville
parent a4e7b730f1
commit 8862dc5f25
1 changed files with 5 additions and 0 deletions
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5
net/wireless/scan.c
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@ -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;