pinctrl: st: Convert to use dev_err_probe()

It's fine to call dev_err_probe() in ->probe() when error code is known.
Convert the driver to use dev_err_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index bccde0b..9cb0da8 100644 (file)
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -1255,10 +1255,8 @@ static int st_pctl_parse_functions(struct device_node *np,
        func = &info->functions[index];
        func->name = np->name;
        func->ngroups = of_get_child_count(np);
-       if (func->ngroups == 0) {
-               dev_err(dev, "No groups defined\n");
-               return -EINVAL;
-       }
+       if (func->ngroups == 0)
+               return dev_err_probe(dev, -EINVAL, "No groups defined\n");
        func->groups = devm_kcalloc(dev, func->ngroups, sizeof(*func->groups), GFP_KERNEL);
        if (!func->groups)
                return -ENOMEM;
@@ -1555,10 +1553,8 @@ static int st_gpiolib_register_bank(struct st_pinctrl *info,
 
 skip_irq:
        err  = gpiochip_add_data(&bank->gpio_chip, bank);
-       if (err) {
-               dev_err(dev, "Failed to add gpiochip(%d)!\n", bank_num);
-               return err;
-       }
+       if (err)
+               return dev_err_probe(dev, err, "Failed to add gpiochip(%d)!\n", bank_num);
        dev_info(dev, "%s bank added.\n", range->name);
 
        return 0;
@@ -1585,10 +1581,8 @@ static int st_pctl_probe_dt(struct platform_device *pdev,
        int irq = 0;
 
        st_pctl_dt_child_count(info, np);
-       if (!info->nbanks) {
-               dev_err(dev, "you need at least one gpio bank\n");
-               return -EINVAL;
-       }
+       if (!info->nbanks)
+               return dev_err_probe(dev, -EINVAL, "you need at least one gpio bank\n");
 
        dev_info(dev, "nbanks = %d\n", info->nbanks);
        dev_info(dev, "nfunctions = %d\n", info->nfunctions);
@@ -1604,10 +1598,8 @@ static int st_pctl_probe_dt(struct platform_device *pdev,
                return -ENOMEM;
 
        info->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
-       if (IS_ERR(info->regmap)) {
-               dev_err(dev, "No syscfg phandle specified\n");
-               return PTR_ERR(info->regmap);
-       }
+       if (IS_ERR(info->regmap))
+               return dev_err_probe(dev, PTR_ERR(info->regmap), "No syscfg phandle specified\n");
        info->data = of_match_node(st_pctl_of_match, np)->data;
 
        irq = platform_get_irq(pdev, 0);
@@ -1695,10 +1687,8 @@ static int st_pctl_probe(struct platform_device *pdev)
        pctl_desc->name         = dev_name(dev);
 
        info->pctl = devm_pinctrl_register(dev, pctl_desc, info);
-       if (IS_ERR(info->pctl)) {
-               dev_err(dev, "Failed pinctrl registration\n");
-               return PTR_ERR(info->pctl);
-       }
+       if (IS_ERR(info->pctl))
+               return dev_err_probe(dev, PTR_ERR(info->pctl), "Failed pinctrl registration\n");
 
        for (i = 0; i < info->nbanks; i++)
                pinctrl_add_gpio_range(info->pctl, &info->banks[i].range);