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@microsoft.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: stable <stable@kernel.org>  [.39]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 219d88a0eea..dde6a0fad40 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);