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rtlwifi: Fix use of mutex in interrupt code

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A previous conversion from semaphoreto mutexes missed the fact that one
of the semaphores was used in interrupt code. Fixed by changing to
a spinlock.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger
2010-12-17 19:36:25 -06:00
committed by John W. Linville
parent f0b3e4b730
commit d704300fa5
3 changed files with 6 additions and 5 deletions
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5
drivers/net/wireless/rtlwifi/ps.c
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@@ -286,8 +286,9 @@ void rtl_ips_nic_on(struct ieee80211_hw *hw)
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
enum rf_pwrstate rtstate;
unsigned long flags;
mutex_lock(&rtlpriv->locks.ips_mutex);
spin_lock_irqsave(&rtlpriv->locks.ips_lock, flags);
if (ppsc->b_inactiveps) {
rtstate = ppsc->rfpwr_state;
@@ -303,7 +304,7 @@ void rtl_ips_nic_on(struct ieee80211_hw *hw)
}
}
mutex_unlock(&rtlpriv->locks.ips_mutex);
spin_unlock_irqrestore(&rtlpriv->locks.ips_lock, flags);
}
/*for FW LPS*/