From: Dafna Hirschfeld <[email protected]>
[ Upstream commit d7faa8ffb6be57bf8233a4b5a636d76b83c51ce7 ]
In function rockchip_dt_node_to_map, a new_map variable is
allocated by:
new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
GFP_KERNEL);
This uses devres and attaches new_map to the pinctrl driver.
This cause a leak since new_map is not released when the probed
driver is removed. Fix it by using kcalloc to allocate new_map
and free it in `rockchip_dt_free_map`
Signed-off-by: Dafna Hirschfeld <[email protected]>
Reviewed-by: Heiko Stuebner <[email protected]>
Link:
https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
drivers/pinctrl/pinctrl-rockchip.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-rockchip.c
b/drivers/pinctrl/pinctrl-rockchip.c
index 0989513463393..d7869b636889e 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -508,8 +508,8 @@ static int rockchip_dt_node_to_map(struct pinctrl_dev
*pctldev,
}
map_num += grp->npins;
- new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
- GFP_KERNEL);
+
+ new_map = kcalloc(map_num, sizeof(*new_map), GFP_KERNEL);
if (!new_map)
return -ENOMEM;
@@ -519,7 +519,7 @@ static int rockchip_dt_node_to_map(struct pinctrl_dev
*pctldev,
/* create mux map */
parent = of_get_parent(np);
if (!parent) {
- devm_kfree(pctldev->dev, new_map);
+ kfree(new_map);
return -EINVAL;
}
new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
@@ -546,6 +546,7 @@ static int rockchip_dt_node_to_map(struct pinctrl_dev
*pctldev,
static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
struct pinctrl_map *map, unsigned num_maps)
{
+ kfree(map);
}
static const struct pinctrl_ops rockchip_pctrl_ops = {
--
2.25.1
