A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-08 04:42:04 -04:00
Code Issues Projects Releases Packages Wiki Activity

pinctrl: sunxi: Fix memory leak on krealloc failure

Browse source 
[ Upstream commit e3507c56cbb208d4f160942748c527ef6a528ba1 ]

In sunxi_pctrl_dt_node_to_map(), when krealloc() fails to resize
the pinctrl_map array, the function returns -ENOMEM directly
without freeing the previously allocated *map buffer. This results
in a memory leak of the original kmalloc_array allocation.

Fixes: e11dee2e98 ("pinctrl: sunxi: Deal with configless pins")
Signed-off-by: Yuan Chen <chenyuan@kylinos.cn>
Link: https://lore.kernel.org/20250620012708.16709-1-chenyuan_fl@163.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yuan Chen 2025-06-20 09:27:08 +08:00 • committed by Greg Kroah-Hartman
commit abe9813d60
1 changed files with 8 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

11
drivers/pinctrl/sunxi/pinctrl-sunxi.c
View file

@ -327,6 +327,7 @@ static int sunxi_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
const char *function, *pin_prop;
const char *group;
int ret, npins, nmaps, configlen = 0, i = 0;
struct pinctrl_map *new_map;
*map = NULL;
*num_maps = 0;
@ -401,9 +402,13 @@ static int sunxi_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
* We know have the number of maps we need, we can resize our
* map array
*/
*map = krealloc(*map, i * sizeof(struct pinctrl_map), GFP_KERNEL);
if (!*map)
return -ENOMEM;
new_map = krealloc(*map, i * sizeof(struct pinctrl_map), GFP_KERNEL);
if (!new_map) {
ret = -ENOMEM;
goto err_free_map;
}
*map = new_map;
return 0;