pinctrl: single: Fix incorrect type for error return variable

pcs_pinconf_get() and pcs_pinconf_set() declare ret as unsigned int,
but assign it the return values of pcs_get_function() that may return
negative error codes. This causes negative error codes to be
converted to large positive values.

Change ret from unsigned int to int in both functions.

Fixes: 9dddb4df90d1 ("pinctrl: single: support generic pinconf")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Linus Walleij <linusw@kernel.org>

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 6d580aa282ec98f792f901344ff73b685bf65dcf..998f23d6c3179ec8a9c484a56eb1b49988ca592d 100644 (file)
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -485,7 +485,8 @@ static int pcs_pinconf_get(struct pinctrl_dev *pctldev,
        struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
        struct pcs_function *func;
        enum pin_config_param param;
-       unsigned offset = 0, data = 0, i, j, ret;
+       unsigned offset = 0, data = 0, i, j;
+       int ret;
 
        ret = pcs_get_function(pctldev, pin, &func);
        if (ret)
@@ -549,9 +550,9 @@ static int pcs_pinconf_set(struct pinctrl_dev *pctldev,
 {
        struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
        struct pcs_function *func;
-       unsigned offset = 0, shift = 0, i, data, ret;
+       unsigned offset = 0, shift = 0, i, data;
        u32 arg;
-       int j;
+       int j, ret;
        enum pin_config_param param;
 
        ret = pcs_get_function(pctldev, pin, &func);