From: Sumera Priyadarsini Date: Tue, 18 Aug 2020 18:52:41 +0000 (+0530) Subject: net: gianfar: Add of_node_put() before goto statement X-Git-Tag: v4.4.235~24 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f8f77d9fd130592c072d1ad621a66106c2f10fe;p=thirdparty%2Fkernel%2Fstable.git net: gianfar: Add of_node_put() before goto statement [ Upstream commit 989e4da042ca4a56bbaca9223d1a93639ad11e17 ] Every iteration of for_each_available_child_of_node() decrements reference count of the previous node, however when control is transferred from the middle of the loop, as in the case of a return or break or goto, there is no decrement thus ultimately resulting in a memory leak. Fix a potential memory leak in gianfar.c by inserting of_node_put() before the goto statement. Issue found with Coccinelle. Signed-off-by: Sumera Priyadarsini Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 37cc1f838dd8b..96310e2ee5458 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -845,8 +845,10 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) continue; err = gfar_parse_group(child, priv, model); - if (err) + if (err) { + of_node_put(child); goto err_grp_init; + } } } else { /* SQ_SG_MODE */ err = gfar_parse_group(np, priv, model);