brcm80211: fmac: use spinlock calls saving irq flags in brcmf_enq_event()
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>
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 285fa19..15d7f00 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -3308,6 +3308,7 @@
{
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 @@
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;
}