pinctrl: bcm2835: Fix a few error paths

commit 5297c69 upstream.

After commit 266423e ("pinctrl: bcm2835: Change init order for gpio
hogs") a few error paths would not unwind properly the registration of
gpio ranges. Correct that by assigning a single error label and goto it
whenever we encounter a fatal error.

Fixes: 266423e ("pinctrl: bcm2835: Change init order for gpio hogs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220127215033.267227-1-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/pinctrl/bcm/pinctrl-bcm2835.c

@@ -1264,16 +1264,18 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 				     sizeof(*girq->parents),
 				     GFP_KERNEL);
 	if (!girq->parents) {
-		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto out_remove;
 	}
 
 	if (is_7211) {
 		pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS,
 					    sizeof(*pc->wake_irq),
 					    GFP_KERNEL);
-		if (!pc->wake_irq)
-			return -ENOMEM;
+		if (!pc->wake_irq) {
+			err = -ENOMEM;
+			goto out_remove;
+		}
 	}
 
 	/*
@@ -1301,8 +1303,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 
 		len = strlen(dev_name(pc->dev)) + 16;
 		name = devm_kzalloc(pc->dev, len, GFP_KERNEL);
-		if (!name)
-			return -ENOMEM;
+		if (!name) {
+			err = -ENOMEM;
+			goto out_remove;
+		}
 
 		snprintf(name, len, "%s:bank%d", dev_name(pc->dev), i);
 
@@ -1321,11 +1325,14 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 	err = gpiochip_add_data(&pc->gpio_chip, pc);
 	if (err) {
 		dev_err(dev, "could not add GPIO chip\n");
-		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
-		return err;
+		goto out_remove;
 	}
 
 	return 0;
+
+out_remove:
+	pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
+	return err;
 }
 
 static struct platform_driver bcm2835_pinctrl_driver = {