From cf44066a3836847a74f6a0817c680726b796239f Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Thu, 9 Feb 2012 21:09:07 +0100 Subject: [PATCH] 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 Reviewed-by: Kan Yan Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) 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 @@ 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; } -- 2.7.4