linux-kernel - [PATCH] net: dsa: felix: Fix memory leak in felix_setup_mmio

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Message-Id: <20211208180509.32587-1-jose.exposito89@gmail.com>
Date:   Wed,  8 Dec 2021 19:05:09 +0100
From:   José Expósito <jose.exposito89@...il.com>
To:     vladimir.oltean@....com
Cc:     claudiu.manoil@....com, alexandre.belloni@...tlin.com,
        andrew@...n.ch, vivien.didelot@...il.com, f.fainelli@...il.com,
        davem@...emloft.net, kuba@...nel.org, linux@...linux.org.uk,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        José Expósito <jose.exposito89@...il.com>
Subject: [PATCH] net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering

Addresses-Coverity-ID: 1492897 ("Resource leak")
Addresses-Coverity-ID: 1492899 ("Resource leak")
Signed-off-by: José Expósito <jose.exposito89@...il.com>
---
 drivers/net/dsa/ocelot/felix.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 327cc4654806..f1a05e7dc818 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -290,8 +290,11 @@ static int felix_setup_mmio_filtering(struct felix *felix)
 		}
 	}
 
-	if (cpu < 0)
+	if (cpu < 0) {
+		kfree(tagging_rule);
+		kfree(redirect_rule);
 		return -EINVAL;
+	}
 
 	tagging_rule->key_type = OCELOT_VCAP_KEY_ETYPE;
 	*(__be16 *)tagging_rule->key.etype.etype.value = htons(ETH_P_1588);
-- 
2.25.1