mmc: sdhci-iproc: Clean up platform allocations if shdci init fails

This patch adopts the changes from 475c9e43bfa7 ("mmc: sdhci-bcm2835:
Clean up platform allocations if sdhci init fails") to sdhci-iproc.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-iproc.c

@@ -213,7 +213,11 @@ static int sdhci_iproc_probe(struct platform_device *pdev)
 		host->caps1 = iproc_host->data->caps1;
 	}
 
-	return sdhci_add_host(host);
+	ret = sdhci_add_host(host);
+	if (ret)
+		goto err;
+
+	return 0;
 
 err:
 	sdhci_pltfm_free(pdev);