From: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon, 11 Jul 2011 17:48:09 +0000 (-0700)
Subject: net: wireless: bcmdhd: Fix crash if event queue is empty
X-Git-Tag: firefly_0821_release~7613^2~543
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=23b6dd6ff795b3ed4e327d42fbc1e646e1f00e98;p=firefly-linux-kernel-4.4.55.git

net: wireless: bcmdhd: Fix crash if event queue is empty

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
---

diff --git a/drivers/net/wireless/bcmdhd/wl_cfg80211.c b/drivers/net/wireless/bcmdhd/wl_cfg80211.c
index d9c7e6587698..ef5cd47b278c 100644
--- a/drivers/net/wireless/bcmdhd/wl_cfg80211.c
+++ b/drivers/net/wireless/bcmdhd/wl_cfg80211.c
@@ -4892,8 +4892,8 @@ static s32 wl_event_handler(void *data)
 			break;
 		e = wl_deq_event(wl);
 		if (unlikely(!e)) {
-			WL_ERR(("eqeue empty..\n"));
-			BUG();
+			WL_ERR(("equeue empty..\n"));
+			return 0;
 		}
 		WL_DBG(("event type (%d), if idx: %d\n", e->etype, e->emsg.ifidx));
 		netdev = dhd_idx2net((struct dhd_pub *)(wl->pub), e->emsg.ifidx);