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brcm80211: fmac: use spinlock calls saving irq flags in brcmf_enq_event()

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This function is executed within irq context. The call spin_unlock_irq
does enable interrupts which is not desired in the irq context. This patch
replaces them using the spin_loc_irqsave and spin_unlock_irqrestore
functions.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Kan Yan <kanyan@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2012-02-09 21:09:07 +01:00 committed by John W. Linville
parent bcbec9e777
commit cf44066a38
1 changed files with 3 additions and 2 deletions
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5
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
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@ -3308,6 +3308,7 @@ brcmf_enq_event(struct brcmf_cfg80211_priv *cfg_priv, u32 event,
{
struct brcmf_cfg80211_event_q *e;
s32 err = 0;
ulong flags;
e = kzalloc(sizeof(struct brcmf_cfg80211_event_q), GFP_ATOMIC);
if (!e)
@ -3316,9 +3317,9 @@ brcmf_enq_event(struct brcmf_cfg80211_priv *cfg_priv, u32 event,
e->etype = event;
memcpy(&e->emsg, msg, sizeof(struct brcmf_event_msg));
spin_lock_irq(&cfg_priv->evt_q_lock);
spin_lock_irqsave(&cfg_priv->evt_q_lock, flags);
list_add_tail(&e->evt_q_list, &cfg_priv->evt_q_list);
spin_unlock_irq(&cfg_priv->evt_q_lock);
spin_unlock_irqrestore(&cfg_priv->evt_q_lock, flags);
return err;
}