i2c: Convert to devm_ioremap_resource()

Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index 3f1818b..183cf05 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -308,10 +308,9 @@
 		goto out;
 	}
 
-	siic->base = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (siic->base == NULL) {
-		dev_err(&pdev->dev, "IO remap failed!\n");
-		err = -ENOMEM;
+	siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(siic->base)) {
+		err = PTR_ERR(siic->base);
 		goto out;
 	}