linux-kernel - [PATCH] ata: sata_mv: aspeed: fix value check in mv_platform

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Message-Id: <20231007072657.4001311-1-make_ruc2021@163.com>
Date:   Sat,  7 Oct 2023 15:26:57 +0800
From:   Ma Ke <make_ruc2021@....com>
To:     dlemoal@...nel.org
Cc:     linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ma Ke <make_ruc2021@....com>
Subject: [PATCH] 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@....com>
---
 drivers/ata/sata_mv.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 45e48d653c60..96f9841aae6c 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -4125,8 +4125,11 @@ static int mv_platform_probe(struct platform_device *pdev)
 	hpriv->clk = clk_get(&pdev->dev, NULL);
 	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)
+			return rc;
+	}
 
 	for (port = 0; port < n_ports; port++) {
 		char port_number[16];
-- 
2.37.2