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Sun, 09 Aug 2026 08:07:24 -0700 (PDT) Sender: Guenter Roeck Date: Sun, 9 Aug 2026 08:07:24 -0700 From: Guenter Roeck To: phucduc.bui@gmail.com Cc: Wim Van Sebroeck , Maxime Coquelin , Alexandre Torgue , linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 2/2] watchdog: stm32_iwdg: Propagate errors from optional IRQ lookup Message-ID: <84fbf9f7-4b30-48d4-895d-efa10cffcfc0@roeck-us.net> References: <20260807080447.35479-1-phucduc.bui@gmail.com> <20260807080447.35479-2-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260807080447.35479-2-phucduc.bui@gmail.com> On Fri, Aug 07, 2026 at 03:04:47PM +0700, phucduc.bui@gmail.com wrote: > 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 Applie. Thanks, Guenter