linux-kernel - [PATCH] usb: fsl-mph-dr-of: Remove unnecessary NULL check before clk_disable

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Message-Id: <20250617041917.1930885-1-nichen@iscas.ac.cn>
Date: Tue, 17 Jun 2025 12:19:17 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: gregkh@...uxfoundation.org,
	u.kleine-koenig@...libre.com
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] usb: fsl-mph-dr-of: Remove unnecessary NULL check before clk_disable_unprepare()

clk_disable_unprepare() already checks NULL by using IS_ERR_OR_NULL.
Remove unneeded NULL check for clk here.

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/usb/host/fsl-mph-dr-of.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 4e67b9471986..edfb63543029 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -327,8 +327,7 @@ static void fsl_usb2_mpc5121_exit(struct platform_device *pdev)
 
 	pdata->regs = NULL;
 
-	if (pdata->clk)
-		clk_disable_unprepare(pdata->clk);
+	clk_disable_unprepare(pdata->clk);
 }
 
 static struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = {
-- 
2.25.1