| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.8 156/255] net: gianfar: Add of_node_put() before goto statement | Date | Tue, 1 Sep 2020 17:10:12 +0200 |
| |
From: Sumera Priyadarsini <sylphrenadin@gmail.com>
[ 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 <sylphrenadin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/freescale/gianfar.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index b513b8c5c3b5e..41dd3d0f34524 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -750,8 +750,10 @@ 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); -- 2.25.1
|