diff options
| author | Nishka Dasgupta <nishkadg.linux@gmail.com> | 2019-08-08 13:17:20 +0530 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-08-10 10:29:19 +0200 |
| commit | bf4b87b0d06aa3860e5b23d7b144a42c657d58c2 (patch) | |
| tree | a66902e443a2f7a9827e14207f20e41101cd54ef /drivers/pinctrl/freescale | |
| parent | 5a6bc29032700bcc1fb752dd58f73179a78d115b (diff) | |
pinctrl: freescale: imx: Add of_node_put() before return
Each iteration of for_each_child_of_node() puts the previous node;
however, in the case of a return from the middle of the loop, there is no
put, thus causing a memory leak. Hence put of_node_put() statements as
required before two mid-loop return statements.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190808074720.15754-1-nishkadg.linux@gmail.com
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/freescale')
| -rw-r--r-- | drivers/pinctrl/freescale/pinctrl-imx.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c index 83ff9532bae6..9f42036c5fbb 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.c +++ b/drivers/pinctrl/freescale/pinctrl-imx.c @@ -672,8 +672,10 @@ static int imx_pinctrl_parse_functions(struct device_node *np, grp = devm_kzalloc(ipctl->dev, sizeof(struct group_desc), GFP_KERNEL); - if (!grp) + if (!grp) { + of_node_put(child); return -ENOMEM; + } mutex_lock(&ipctl->mutex); radix_tree_insert(&pctl->pin_group_tree, @@ -697,12 +699,17 @@ static bool imx_pinctrl_dt_is_flat_functions(struct device_node *np) struct device_node *pinctrl_np; for_each_child_of_node(np, function_np) { - if (of_property_read_bool(function_np, "fsl,pins")) + if (of_property_read_bool(function_np, "fsl,pins")) { + of_node_put(function_np); return true; + } for_each_child_of_node(function_np, pinctrl_np) { - if (of_property_read_bool(pinctrl_np, "fsl,pins")) + if (of_property_read_bool(pinctrl_np, "fsl,pins")) { + of_node_put(pinctrl_np); + of_node_put(function_np); return false; + } } } |