linux-kernel - [PATCH v2] clk: qcom: Fix error checking for devm_clk_hw_get

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Message-Id: <20240826061717.2016126-1-yanzhen@vivo.com>
Date: Mon, 26 Aug 2024 14:17:17 +0800
From: Yan Zhen <yanzhen@...o.com>
To: mturquette@...libre.com,
	sboyd@...nel.org,
	andersson@...nel.org
Cc: linux-arm-msm@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	opensoure.kernel@...o.com,
	Yan Zhen <yanzhen@...o.com>
Subject: [PATCH v2] clk: qcom: Fix error checking for devm_clk_hw_get_clk()

The devm_clk_hw_get_clk() function returns error pointers.
It never returns NULL.  Update the check accordingly.


Signed-off-by: Yan Zhen <yanzhen@...o.com>
---

Changes in v2:
- Return PTR_ERR(icd[i].clk) instead of -ENOENT.

 drivers/clk/qcom/common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
index 33cc1f73c69d..5a9e653916ea 100644
--- a/drivers/clk/qcom/common.c
+++ b/drivers/clk/qcom/common.c
@@ -273,8 +273,8 @@ static int qcom_cc_icc_register(struct device *dev,
 		icd[i].slave_id = desc->icc_hws[i].slave_id;
 		hws = &desc->clks[desc->icc_hws[i].clk_id]->hw;
 		icd[i].clk = devm_clk_hw_get_clk(dev, hws, "icc");
-		if (!icd[i].clk)
-			return dev_err_probe(dev, -ENOENT,
+		if (IS_ERR(icd[i].clk))
+			return dev_err_probe(dev, PTR_ERR(icd[i].clk),
 					     "(%d) clock entry is null\n", i);
 		icd[i].name = clk_hw_get_name(hws);
 	}
-- 
2.34.1