linux-kernel - [PATCH] soc: fsl: cpm1: qmc: Set the ret error code on platform_get

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Message-ID: <20241105145623.401528-1-herve.codina@bootlin.com>
Date: Tue,  5 Nov 2024 15:56:23 +0100
From: Herve Codina <herve.codina@...tlin.com>
To: Herve Codina <herve.codina@...tlin.com>,
	Qiang Zhao <qiang.zhao@....com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Mark Brown <broonie@...nel.org>,
	Li Yang <leoyang.li@....com>
Cc: linuxppc-dev@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	kernel test robot <lkp@...el.com>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	stable@...r.kernel.org
Subject: [PATCH] soc: fsl: cpm1: qmc: Set the ret error code on platform_get_irq() failure

A kernel test robot detected a missing error code:
   qmc.c:1942 qmc_probe() warn: missing error code 'ret'

Indeed, the error returned by platform_get_irq() is checked and the
operation is aborted in case of failure but the ret error code is
not set in that case.

Set the ret error code.

Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
Closes: https://lore.kernel.org/r/202411051350.KNy6ZIWA-lkp@intel.com/
Fixes: 3178d58e0b97 ("soc: fsl: cpm1: Add support for QMC")
Cc: stable@...r.kernel.org
Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
 drivers/soc/fsl/qe/qmc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index 19cc581b06d0..b3f773e135fd 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -2004,8 +2004,10 @@ static int qmc_probe(struct platform_device *pdev)
 
 	/* Set the irq handler */
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
+	if (irq < 0) {
+		ret = irq;
 		goto err_exit_xcc;
+	}
 	ret = devm_request_irq(qmc->dev, irq, qmc_irq_handler, 0, "qmc", qmc);
 	if (ret < 0)
 		goto err_exit_xcc;
-- 
2.46.2