linux-kernel - [PATCH] staging: fsl-dpaa2/ethsw: fix memory leak of switchdev

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Message-Id: <20190608115031.28126-1-colin.king@canonical.com>
Date:   Sat,  8 Jun 2019 12:50:31 +0100
From:   Colin King <colin.king@...onical.com>
To:     Ioana Radulescu <ruxandra.radulescu@....com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, devel@...verdev.osuosl.org
Subject: [PATCH] staging: fsl-dpaa2/ethsw: fix memory leak of switchdev_work

From: Colin Ian King <colin.king@...onical.com>

In the default event case switchdev_work is being leaked because
nothing is queued for work. Fix this by kfree'ing switchdev_work
before returning NOTIFY_DONE.

Addresses-Coverity: ("Resource leak")
Fixes: 44baaa43d7cc ("staging: fsl-dpaa2/ethsw: Add Freescale DPAA2 Ethernet Switch driver")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
index e3c3e427309a..f73edaf6ce87 100644
--- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
@@ -1086,6 +1086,7 @@ static int port_switchdev_event(struct notifier_block *unused,
 		dev_hold(dev);
 		break;
 	default:
+		kfree(switchdev_work);
 		return NOTIFY_DONE;
 	}
 
-- 
2.20.1