pinctrl: nomadik: Use kmemdup_array instead of kmemdup for multiple allocation

Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: Yu Jiaoliang <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>

Author: Yu Jiaoliang

drivers/pinctrl/nomadik/pinctrl-abx500.c

@@ -716,8 +716,7 @@ static int abx500_dt_add_map_configs(struct pinctrl_map **map,
 	if (*num_maps == *reserved_maps)
 		return -ENOSPC;
 
-	dup_configs = kmemdup(configs, num_configs * sizeof(*dup_configs),
-			      GFP_KERNEL);
+	dup_configs = kmemdup_array(configs, num_configs, sizeof(*dup_configs), GFP_KERNEL);
 	if (!dup_configs)
 		return -ENOMEM;
 

drivers/pinctrl/nomadik/pinctrl-nomadik.c

@@ -601,8 +601,7 @@ static int nmk_dt_add_map_configs(struct pinctrl_map **map,
 	if (*num_maps == *reserved_maps)
 		return -ENOSPC;
 
-	dup_configs = kmemdup(configs, num_configs * sizeof(*dup_configs),
-			      GFP_KERNEL);
+	dup_configs = kmemdup_array(configs, num_configs, sizeof(*dup_configs), GFP_KERNEL);
 	if (!dup_configs)
 		return -ENOMEM;