Re: [PATCH] drivers/pinctrl/pinctrl-at91.c: convert kfree to devm_kfree

Julia Lawall
2012-12-12T14:22:44Z

From: Julia Lawall <Julia.Lawall@lip6.fr>

The function at91_dt_node_to_map is ultimately called by the function
pinctrl_get, which is an exported function. Since it is possible that this
function is not called from within a probe function, for safety, the kfree
is converted to a devm_kfree, to both free the data and remove it from the
device in a failure situation.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
v2: Drop cleanup of the call to devm_kzalloc at the same time.

drivers/pinctrl/pinctrl-at91.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index c5e7571..bff54bf 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -265,7 +265,7 @@ static int at91_dt_node_to_map(struct pinctrl_dev *pctldev,
/* create mux map */
parent = of_get_parent(np);
if (!parent) {
- kfree(new_map);
+ devm_kfree(pctldev->dev, new_map);
return -EINVAL;
}
new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;