cfg80211: Fix mutex locking in reg_last_request_cell_base
should fix the following issue [ 3229.815012] [ BUG: lock held when returning to user space! ] [ 3229.815016] 3.5.0-rc7-wl #28 Tainted: G W O [ 3229.815017] ------------------------------------------------ [ 3229.815019] wpa_supplicant/5783 is leaving the kernel with locks still held! [ 3229.815022] 1 lock held by wpa_supplicant/5783: [ 3229.815023] #0: (reg_mutex){+.+.+.}, at: [<fa65834d>] reg_last_request_cell_base+0x1d/0x60 [cfg80211] Cc: Luis Rodriguez <mcgrof@gmail.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Tested-by: Luciano Coelho <coelho@ti.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -929,11 +929,13 @@ static bool reg_request_cell_base(struct regulatory_request *request)
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bool reg_last_request_cell_base(void)
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{
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bool val;
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assert_cfg80211_lock();
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mutex_lock(®_mutex);
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return reg_request_cell_base(last_request);
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val = reg_request_cell_base(last_request);
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mutex_unlock(®_mutex);
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return val;
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}
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#ifdef CONFIG_CFG80211_CERTIFICATION_ONUS
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