mmc: tegra: handle mmc_of_parse() errors during probe

Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

drivers/mmc/host/sdhci-tegra.c

@@ -205,7 +205,7 @@ static const struct of_device_id sdhci_tegra_dt_match[] = {
 };
 MODULE_DEVICE_TABLE(of, sdhci_tegra_dt_match);
 
-static void sdhci_tegra_parse_dt(struct device *dev)
+static int sdhci_tegra_parse_dt(struct device *dev)
 {
 	struct device_node *np = dev->of_node;
 	struct sdhci_host *host = dev_get_drvdata(dev);
@@ -213,7 +213,7 @@ static void sdhci_tegra_parse_dt(struct device *dev)
 	struct sdhci_tegra *tegra_host = pltfm_host->priv;
 
 	tegra_host->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
-	mmc_of_parse(host->mmc);
+	return mmc_of_parse(host->mmc);
 }
 
 static int sdhci_tegra_probe(struct platform_device *pdev)
@@ -245,7 +245,9 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
 	tegra_host->soc_data = soc_data;
 	pltfm_host->priv = tegra_host;
 
-	sdhci_tegra_parse_dt(&pdev->dev);
+	rc = sdhci_tegra_parse_dt(&pdev->dev);
+	if (rc)
+		goto err_parse_dt;
 
 	if (gpio_is_valid(tegra_host->power_gpio)) {
 		rc = gpio_request(tegra_host->power_gpio, "sdhci_power");
@@ -279,6 +281,7 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
 	if (gpio_is_valid(tegra_host->power_gpio))
 		gpio_free(tegra_host->power_gpio);
 err_power_req:
+err_parse_dt:
 err_alloc_tegra_host:
 	sdhci_pltfm_free(pdev);
 	return rc;