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cfg80211: replace reg.c Nokia commit c4c32294

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Nokia hasn't gotten back to me in over 1 month for a relicense
change request. There are only a few changes that they contributed,
so just reverting their changes but replacing with another set.
This change replaces this commit:

commit c4c322941c
Author: Yuri Ershov <ext-yuri.ershov@nokia.com>
Date:   Tue Jun 29 15:08:08 2010 +0400

    cfg80211: Update of regulatory request initiator handling

    In some cases there could be possible dereferencing freed pointer. The
    update is intended to avoid this issue.

    Signed-off-by: Yuri Ershov <ext-yuri.ershov@nokia.com>
    Signed-off-by: John W. Linville <linville@tuxdriver.com>

Cc: Petri Karhula <petri.karhula@nokia.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2011-12-20 12:23:36 -08:00 committed by John W. Linville
parent a98aa7ae14
commit 8848bef038
1 changed files with 6 additions and 6 deletions
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12
net/wireless/reg.c
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@ -1480,18 +1480,18 @@ new_request:
}
/* This processes *all* regulatory hints */
static void reg_process_hint(struct regulatory_request *reg_request)
static void reg_process_hint(struct regulatory_request *reg_request,
enum nl80211_reg_initiator reg_initiator)
{
int r = 0;
struct wiphy *wiphy = NULL;
enum nl80211_reg_initiator initiator = reg_request->initiator;
BUG_ON(!reg_request->alpha2);
if (wiphy_idx_valid(reg_request->wiphy_idx))
wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
if (reg_initiator == NL80211_REGDOM_SET_BY_DRIVER &&
!wiphy) {
kfree(reg_request);
return;
@ -1501,7 +1501,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
/* This is required so that the orig_* parameters are saved */
if (r == -EALREADY && wiphy &&
wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY) {
wiphy_update_regulatory(wiphy, initiator);
wiphy_update_regulatory(wiphy, reg_initiator);
return;
}
@ -1510,7 +1510,7 @@ static void reg_process_hint(struct regulatory_request *reg_request)
* source of bogus requests.
*/
if (r != -EALREADY &&
reg_request->initiator == NL80211_REGDOM_SET_BY_USER)
reg_initiator == NL80211_REGDOM_SET_BY_USER)
schedule_delayed_work(&reg_timeout, msecs_to_jiffies(3142));
}
@ -1547,7 +1547,7 @@ static void reg_process_pending_hints(void)
spin_unlock(&reg_requests_lock);
reg_process_hint(reg_request);
reg_process_hint(reg_request, reg_request->initiator);
out:
mutex_unlock(&reg_mutex);