[PATCH] pinctrl: nuvoton: fix a double free in ma35_pinctrl_dt_node_to_map_func()

[Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx>]

'new_map' is allocated using devm_* which takes care of freeing the
allocated data on device removal, call to

	.dt_free_map = pinconf_generic_dt_free_map

double frees the map as pinconf_generic_dt_free_map() calls
pinctrl_utils_free_map().

Fix this by using kcalloc() instead of auto-managed devm_kcalloc().

Cc: stable@xxxxxxxxxxxxxxx
Fixes: f805e356313b ("pinctrl: nuvoton: Add ma35d1 pinctrl and GPIO driver")
Reported-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx>
---
This is based on static analysis and reading code, only compile tested.
Added the stable tag as the commit in Fixes is also in 6.11.y
---
 drivers/pinctrl/nuvoton/pinctrl-ma35.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/nuvoton/pinctrl-ma35.c b/drivers/pinctrl/nuvoton/pinctrl-ma35.c
index 1fa00a23534a..59c4e7c6cdde 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-ma35.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-ma35.c
@@ -218,7 +218,7 @@ static int ma35_pinctrl_dt_node_to_map_func(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;
 
-- 
2.39.3