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cfg80211: fix NULL pointer deference in reg_device_remove() 

We won't ever get here as regulatory_hint_core() can only fail
on -ENOMEM and in that case we don't initialize cfg80211 but this is
technically correct code.

This is actually good for stable, where we don't check for -ENOMEM
failure on __regulatory_hint()'s failure.

Cc: stable@kernel.org
Reported-by: Quentin Armitage <Quentin@armitage.org.uk>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-03-24 21:21:08 -04:00 committed by John W. Linville
parent 3664090e19
commit 0ad8acaf43
1 changed files with 3 additions and 2 deletions
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5
net/wireless/reg.c
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@ -2095,11 +2095,12 @@ int set_regdom(const struct ieee80211_regdomain *rd)
/* Caller must hold cfg80211_mutex */
void reg_device_remove(struct wiphy *wiphy)
{
struct wiphy *request_wiphy;
struct wiphy *request_wiphy = NULL;
assert_cfg80211_lock();
request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
if (last_request)
request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
kfree(wiphy->regd);
if (!last_request || !request_wiphy)