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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3957fb87174sm2185525a91.12.2026.08.19.03.26.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Aug 2026 03:26:51 -0700 (PDT) From: phucduc.bui@gmail.com To: Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, bui duc phuc Subject: [PATCH v2] soc: qcom: llcc-qcom: Handle errors from optional IRQ lookup Date: Wed, 19 Aug 2026 17:26:30 +0700 Message-ID: <20260819102630.68991-1-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc platform_get_irq_optional() returns a positive IRQ number on success or a negative error code on failure. For an optional IRQ, -ENXIO indicates that no optional IRQ is available. Other errors, such as -EPROBE_DEFER and -EINVAL, should be propagated so that the caller can handle them appropriately. Propagate negative errors other than -ENXIO. Signed-off-by: bui duc phuc --- Link v1: https://lore.kernel.org/all/20260810051031.26656-1-phucduc.bui@gmail.com/ Changes in v2: - Drop the unnecessary check for a positive return value. - Update the commit message to reflect the existing error handling. drivers/soc/qcom/llcc-qcom.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c index 733999867bbf..b166d45cdb6f 100644 --- a/drivers/soc/qcom/llcc-qcom.c +++ b/drivers/soc/qcom/llcc-qcom.c @@ -5617,6 +5617,10 @@ static int qcom_llcc_probe(struct platform_device *pdev) } drv_data->ecc_irq = platform_get_irq_optional(pdev, 0); + if (drv_data->ecc_irq < 0 && drv_data->ecc_irq != -ENXIO) + return dev_err_probe(&pdev->dev, drv_data->ecc_irq, + "failed to get IRQ resource\n"); + drv_data->edac_reg_offset = cfg->edac_reg_offset; drv_data->ecc_irq_configured = cfg->irq_configured; drv_data->dev = dev; -- 2.43.0