pinctrl: spmi: Use devm_pinctrl_register() for pinctrl registration

Use devm_pinctrl_register() for pin control registration and clean
the error path.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Cc: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Jonas Gorski <jogo@openwrt.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/qcom/pinctrl-spmi-mpp.c

@@ -877,14 +877,14 @@ static int pmic_mpp_probe(struct platform_device *pdev)
 	state->chip.of_gpio_n_cells = 2;
 	state->chip.can_sleep = false;
 
-	state->ctrl = pinctrl_register(pctrldesc, dev, state);
+	state->ctrl = devm_pinctrl_register(dev, pctrldesc, state);
 	if (IS_ERR(state->ctrl))
 		return PTR_ERR(state->ctrl);
 
 	ret = gpiochip_add_data(&state->chip, state);
 	if (ret) {
 		dev_err(state->dev, "can't add gpio chip\n");
-		goto err_chip;
+		return ret;
 	}
 
 	ret = gpiochip_add_pin_range(&state->chip, dev_name(dev), 0, 0, npins);
@@ -897,8 +897,6 @@ static int pmic_mpp_probe(struct platform_device *pdev)
 
 err_range:
 	gpiochip_remove(&state->chip);
-err_chip:
-	pinctrl_unregister(state->ctrl);
 	return ret;
 }
 
@@ -907,7 +905,6 @@ static int pmic_mpp_remove(struct platform_device *pdev)
 	struct pmic_mpp_state *state = platform_get_drvdata(pdev);
 
 	gpiochip_remove(&state->chip);
-	pinctrl_unregister(state->ctrl);
 	return 0;
 }