linux-kernel - [PATCH] spi: spi-rockchip: Fix missing unwind goto in rockchip_sfc

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Message-Id: <20230419115030.6029-1-u202212060@hust.edu.cn>
Date:   Wed, 19 Apr 2023 07:50:29 -0400
From:   Li Lanzhe <u202212060@...t.edu.cn>
To:     Mark Brown <broonie@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
        Chris Morgan <macromorgan@...mail.com>,
        Jon Lin <jon.lin@...k-chips.com>
Cc:     Li Lanzhe <u202212060@...t.edu.cn>,
        Dongliang Mu <dzm91@...t.edu.cn>, linux-spi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] spi: spi-rockchip: Fix missing unwind goto in rockchip_sfc_probe()

If devm_request_irq() fails, then we are directly return 'ret' without 
clk_disable_unprepare(sfc->clk) and clk_disable_unprepare(sfc->hclk).

Fix this by changing direct return to a goto 'err_irq'.

Fixes: 0b89fc0a367e ("spi: rockchip-sfc: add rockchip serial flash controller")
Signed-off-by: Li Lanzhe <u202212060@...t.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@...t.edu.cn>
---
The issue is found by static analysis and remains untested.
---
 drivers/spi/spi-rockchip-sfc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-rockchip-sfc.c b/drivers/spi/spi-rockchip-sfc.c
index bd87d3c92dd3..69347b6bf60c 100644
--- a/drivers/spi/spi-rockchip-sfc.c
+++ b/drivers/spi/spi-rockchip-sfc.c
@@ -632,7 +632,7 @@ static int rockchip_sfc_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(dev, "Failed to request irq\n");
 
-		return ret;
+		goto err_irq;
 	}
 
 	ret = rockchip_sfc_init(sfc);
-- 
2.39.2