ata: sata_mv: aspeed: fix value check in mv_platform_probe()

In mv_platform_probe(), check the return value of clk_prepare_enable()
and return the error code if clk_prepare_enable() returns an
unexpected value.

Signed-off-by: Ma Ke <make_ruc2021@163.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>

Author: Ma Ke

drivers/ata/sata_mv.c

@@ -4123,10 +4123,13 @@ static int mv_platform_probe(struct platform_device *pdev)
 	hpriv->base -= SATAHC0_REG_BASE;
 
 	hpriv->clk = clk_get(&pdev->dev, NULL);
-	if (IS_ERR(hpriv->clk))
+	if (IS_ERR(hpriv->clk)) {
 		dev_notice(&pdev->dev, "cannot get optional clkdev\n");
-	else
-		clk_prepare_enable(hpriv->clk);
+	} else {
+		rc = clk_prepare_enable(hpriv->clk);
+		if (rc)
+			goto err;
+	}
 
 	for (port = 0; port < n_ports; port++) {
 		char port_number[16];