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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84f5a552859sm715908b3a.42.2026.08.07.02.09.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Aug 2026 02:10:03 -0700 (PDT) From: phucduc.bui@gmail.com To: Jiri Slaby , Greg Kroah-Hartman , Frank Li , AngeloGioacchino Del Regno , Sascha Hauer , Fabio Estevam , Yenchia Chen , Daniel Golle , Zhiyong Tao , Sherry Sun , Robin Gong , Viken Dadhaniya , Praveen Talari Cc: Matthias Brugger , Pengutronix Kernel Team , Zong Jiang , Konrad Dybcio , Aniket Randive , Kathiravan Thirumoorthy , Anup Kulkarni , Krzysztof Kozlowski , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-mediatek@lists.infradead.org, imx@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bui duc phuc Subject: [PATCH 1/3] serial: qcom-geni: Propagate errors from optional IRQ lookup Date: Fri, 7 Aug 2026 16:09:43 +0700 Message-ID: <20260807090945.41690-1-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260807_021005_544856_F3154D57 X-CRM114-Status: GOOD ( 13.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 IRQ is available, while other errors should be propagated. Propagate errors such as -EPROBE_DEFER and -EINVAL instead of continuing probe without the IRQ. Signed-off-by: bui duc phuc --- drivers/tty/serial/qcom_geni_serial.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c index 7ead87b4eb65..240a6d67d847 100644 --- a/drivers/tty/serial/qcom_geni_serial.c +++ b/drivers/tty/serial/qcom_geni_serial.c @@ -1883,8 +1883,13 @@ static int qcom_geni_serial_probe(struct platform_device *pdev) uport->irq = irq; uport->has_sysrq = IS_ENABLED(CONFIG_SERIAL_QCOM_GENI_CONSOLE); - if (!data->console) + if (!data->console) { port->wakeup_irq = platform_get_irq_optional(pdev, 1); + if (port->wakeup_irq < 0 && port->wakeup_irq != -ENXIO) { + ret = port->wakeup_irq; + goto error; + } + } if (of_property_read_bool(pdev->dev.of_node, "rx-tx-swap")) port->rx_tx_swap = true; -- 2.43.0