netdev - [PATCH net-next] net: cdc_ncm: error path lock fix

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Message-Id: <1351237449-23643-3-git-send-email-bjorn@mork.no>
Date:	Fri, 26 Oct 2012 09:44:09 +0200
From:	Bjørn Mork <bjorn@...k.no>
To:	netdev@...r.kernel.org
Cc:	linux-usb@...r.kernel.org, Oliver Neukum <oliver@...kum.org>,
	Bjørn Mork <bjorn@...k.no>
Subject: [PATCH net-next] net: cdc_ncm: error path lock fix

Fixes the sparse warning

 drivers/net/usb/cdc_ncm.c:836:9: warning: context imbalance in 'cdc_ncm_txpath_bh' - different lock contexts for basic block

Signed-off-by: Bjørn Mork <bjorn@...k.no>
---
 drivers/net/usb/cdc_ncm.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 682b17a..11370fe 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -842,6 +842,8 @@ static void cdc_ncm_txpath_bh(unsigned long param)
 		netif_tx_lock_bh(ctx->netdev);
 		usbnet_start_xmit(NULL, ctx->netdev);
 		netif_tx_unlock_bh(ctx->netdev);
+	} else {
+		spin_unlock_bh(&ctx->mtx);
 	}
 }
 
-- 
1.7.10.4

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