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From: Ben Chan <benchan@chromium.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
	Devendra Naga <devendra.aaru@gmail.com>,
	benchan@chromium.org
Subject: [PATCH] staging: gdm72xx: fix reference counting in gdm_wimax_event_init
Date: Mon, 23 Jul 2012 16:06:08 -0700	[thread overview]
Message-ID: <1343084768-28803-1-git-send-email-benchan@chromium.org> (raw)

This patch fixes commit 8df858ea76b76dde9a39d4edd9aaded983582cfe, which
mishandles the reference counting of wm_event.

Signed-off-by: Ben Chan <benchan@chromium.org>
---
 drivers/staging/gdm72xx/gdm_wimax.c |   16 ++++++++++------
 1 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
index 0716efc..6cb8107 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -258,12 +258,16 @@ static int gdm_wimax_event_init(void)
 	if (!wm_event.ref_cnt) {
 		wm_event.sock = netlink_init(NETLINK_WIMAX,
 						gdm_wimax_event_rcv);
-		if (wm_event.sock)
-			wm_event.ref_cnt++;
-		INIT_LIST_HEAD(&wm_event.evtq);
-		INIT_LIST_HEAD(&wm_event.freeq);
-		INIT_WORK(&wm_event.ws, __gdm_wimax_event_send);
-		spin_lock_init(&wm_event.evt_lock);
+		if (wm_event.sock) {
+			INIT_LIST_HEAD(&wm_event.evtq);
+			INIT_LIST_HEAD(&wm_event.freeq);
+			INIT_WORK(&wm_event.ws, __gdm_wimax_event_send);
+			spin_lock_init(&wm_event.evt_lock);
+		}
+	}
+
+	if (wm_event.sock) {
+		wm_event.ref_cnt++;
 		return 0;
 	}
 
-- 
1.7.7.3


             reply	other threads:[~2012-07-23 23:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-23 23:06 Ben Chan [this message]
2012-07-24  6:34 ` Dan Carpenter

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