From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 22 Feb 2013 13:32:20 +0000 (+0800)
Subject: brcmfmac: fix missing unlock on error in brcmf_notify_vif_event()
X-Git-Tag: firefly_0821_release~3680^2~921^2~28^2^2~17
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=dc4a787c8f52f9d6e46156953f8014a3353bcbc7;p=firefly-linux-kernel-4.4.55.git

brcmfmac: fix missing unlock on error in brcmf_notify_vif_event()

Add the missing unlock before return from function brcmf_notify_vif_event()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-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 cecc3eff72e9..2af9c0f0798d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -4615,8 +4615,10 @@ static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
 	switch (ifevent->action) {
 	case BRCMF_E_IF_ADD:
 		/* waiting process may have timed out */
-		if (!cfg->vif_event.vif)
+		if (!cfg->vif_event.vif) {
+			mutex_unlock(&event->vif_event_lock);
 			return -EBADF;
+		}
 
 		ifp->vif = vif;
 		vif->ifp = ifp;