linux-kernel - [PATCH] ata: sata_gemini: Add check for clk

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Message-Id: <20240403034314.3623830-1-nichen@iscas.ac.cn>
Date: Wed,  3 Apr 2024 03:43:14 +0000
From: Chen Ni <nichen@...as.ac.cn>
To: linus.walleij@...aro.org,
	dlemoal@...nel.org,
	cassel@...nel.org
Cc: linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] ata: sata_gemini: Add check for clk_enable

As the potential failure of the clk_enable(), it should be better to
check it and return error if fails.

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/ata/sata_gemini.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/sata_gemini.c b/drivers/ata/sata_gemini.c
index 400b22ee99c3..4c270999ba3c 100644
--- a/drivers/ata/sata_gemini.c
+++ b/drivers/ata/sata_gemini.c
@@ -200,7 +200,10 @@ int gemini_sata_start_bridge(struct sata_gemini *sg, unsigned int bridge)
 		pclk = sg->sata0_pclk;
 	else
 		pclk = sg->sata1_pclk;
-	clk_enable(pclk);
+	ret = clk_enable(pclk);
+	if (ret)
+		return ret;
+
 	msleep(10);
 
 	/* Do not keep clocking a bridge that is not online */
-- 
2.25.1