linux-kernel - [PATCH] clk: s2mps11: Check of_clk_add_hw

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Date: Mon, 1 Apr 2024 17:38:08 +0700
From: Aleksandr Aprelkov <aaprelkov@...rgate.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
CC: Aleksandr Aprelkov <aaprelkov@...rgate.com>,Michael Turquette <mturquette@...libre.com>,Stephen Boyd <sboyd@...nel.org>,<linux-kernel@...r.kernel.org>,<linux-samsung-soc@...r.kernel.org>,<linux-clk@...r.kernel.org>,<lvc-project@...uxtesting.org>
Subject: [PATCH] clk: s2mps11: Check of_clk_add_hw_provider() result

There is no check if error occurs in clock provider registration.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: b228fad50c00 ("clk: s2mps11: Migrate to clk_hw based OF and registration APIs")
Signed-off-by: Aleksandr Aprelkov <aaprelkov@...rgate.com>
---
 drivers/clk/clk-s2mps11.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 38c456540d1b..f9ce413b6c02 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -187,8 +187,10 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
 	}
 
 	clk_data->num = S2MPS11_CLKS_NUM;
-	of_clk_add_hw_provider(s2mps11_clks->clk_np, of_clk_hw_onecell_get,
+	ret = of_clk_add_hw_provider(s2mps11_clks->clk_np, of_clk_hw_onecell_get,
 			       clk_data);
+	if (ret < 0)
+		goto err_reg;
 
 	platform_set_drvdata(pdev, s2mps11_clks);
 
-- 
2.34.1