linux-kernel - [PATCH 2/2] Connector: Correctly set the error code in case of success when dispatching receive callbacks

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Message-Id: <1305671138-19443-2-git-send-email-kys@microsoft.com>
Date:	Tue, 17 May 2011 15:25:38 -0700
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	gregkh@...e.de, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, virtualization@...ts.osdl.org
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH 2/2] Connector: Correctly set the error code in case of success when dispatching receive callbacks

The recent changes to the connector code introduced this bug where even
when a callback was invoked, we would return an error resulting in
double freeing of the skb. This patch fixes this bug.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
---
 drivers/connector/connector.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index d770058..c36fbe1 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -139,6 +139,7 @@ static int cn_call_callback(struct sk_buff *skb)
 	spin_unlock_bh(&dev->cbdev->queue_lock);
 
 	if (cbq != NULL) {
+		err = 0;
 		cbq->callback(msg, nsp);
 		kfree_skb(skb);
 		cn_queue_release_callback(cbq);
-- 
1.7.4.1

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