diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index a138965c01cb..1664e7865b9d 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -490,7 +490,7 @@ static int pinconf_dbg_config_print(struct seq_file *s, void *d)
  * <devicename> <state> <pinname> are values that should match the pinctrl-maps
  * <newvalue> reflects the new config and is driver dependant
  */
-static int pinconf_dbg_config_write(struct file *file,
+static ssize_t pinconf_dbg_config_write(struct file *file,
 	const char __user *user_buf, size_t count, loff_t *ppos)
 {
 	struct pinctrl_maps *maps_node;