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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2d16c4a773esm5055305ad.65.2026.08.07.01.05.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Aug 2026 01:05:17 -0700 (PDT) From: phucduc.bui@gmail.com To: Wim Van Sebroeck , Guenter Roeck , Maxime Coquelin , Alexandre Torgue , linux-watchdog@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, bui duc phuc Subject: [PATCH v2 1/2] watchdog: orion_wdt: Propagate errors from optional IRQ lookup Date: Fri, 7 Aug 2026 15:04:46 +0700 Message-ID: <20260807080447.35479-1-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_010519_500371_484FC81F X-CRM114-Status: GOOD ( 13.44 ) 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 --- Link v1: https://lore.kernel.org/all/20260806062812.26523-1-phucduc.bui@gmail.com/ Changes in v2: - Update the commit message and error handling. - Propagate all errors from platform_get_irq_optional() except -ENXIO, instead of only handling -EPROBE_DEFER. drivers/watchdog/orion_wdt.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 0e145f762f6f..f79a14c4e222 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -606,6 +606,8 @@ static int orion_wdt_probe(struct platform_device *pdev) /* Request the IRQ only after the watchdog is disabled */ irq = platform_get_irq_optional(pdev, 0); + if (irq < 0 && irq != -ENXIO) + return irq; if (irq > 0) { /* * Not all supported platforms specify an interrupt for the -- 2.43.0