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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cbef6a5aaf4sm1823555a12.13.2026.08.13.21.30.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Aug 2026 21:30:55 -0700 (PDT) From: phucduc.bui@gmail.com To: Adrian Ng , Linus Walleij , Bartosz Golaszewski , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: bui duc phuc Subject: [PATCH 3/4] gpio: mlxbf2: Handle errors from optional IRQ lookup Date: Fri, 14 Aug 2026 11:30:27 +0700 Message-ID: <20260814043028.12548-3-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260814043028.12548-1-phucduc.bui@gmail.com> References: <20260814043028.12548-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-gpio@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 --- drivers/gpio/gpio-mlxbf2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-mlxbf2.c b/drivers/gpio/gpio-mlxbf2.c index 4e2f3381d82b..4e5c5d196a50 100644 --- a/drivers/gpio/gpio-mlxbf2.c +++ b/drivers/gpio/gpio-mlxbf2.c @@ -394,7 +394,9 @@ mlxbf2_gpio_probe(struct platform_device *pdev) gc->owner = THIS_MODULE; irq = platform_get_irq_optional(pdev, 0); - if (irq >= 0) { + if (irq < 0 && irq != -ENXIO) + return irq; + if (irq > 0) { girq = &gs->chip.gc.irq; gpio_irq_chip_set_chip(girq, &mlxbf2_gpio_irq_chip); girq->handler = handle_simple_irq; -- 2.43.0