mmc: TMIO: Fix I/O mapping leak on error using devm_ioremap()

Signed-off-by: Ian Molton <[e-mail]>
[bwh: Forward-ported to 4.0]
Signed-off-by: Ben Hutchings <[e-mail]>
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/mmc/host/tmio_mmc_pio.c

···
 	if (ret < 0)
 		goto host_free;
 
-	_host->ctl = ioremap(res_ctl->start, resource_size(res_ctl));
+	_host->ctl = devm_ioremap(&pdev->dev,
+				  res_ctl->start, resource_size(res_ctl));
 	if (!_host->ctl) {
 		ret = -ENOMEM;
 		goto host_free;
···
 
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-
-	iounmap(host->ctl);
 }
 EXPORT_SYMBOL(tmio_mmc_host_remove);