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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8520eed8b22sm1777275b3a.4.2026.08.24.03.07.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 03:07:42 -0700 (PDT) From: phucduc.bui@gmail.com To: Johannes Berg , Jaroslav Kysela , Takashi Iwai Cc: Kees Cook , Thorsten Blum , cassiogabrielcontato@gmail.com, linuxppc-dev@lists.ozlabs.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, bui duc phuc Subject: [PATCH] ALSA: aoa: i2sbus: Check IRQ before requesting it Date: Mon, 24 Aug 2026 17:07:30 +0700 Message-ID: <20260824100730.31601-1-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 irq_of_parse_and_map() returns 0 when parsing or mapping an IRQ fails. The return value was passed to request_irq() without checking for failure. Check the return value before passing it to request_irq(). Signed-off-by: bui duc phuc --- sound/aoa/soundbus/i2sbus/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c index 833c44c0a950..adf123dd79a2 100644 --- a/sound/aoa/soundbus/i2sbus/core.c +++ b/sound/aoa/soundbus/i2sbus/core.c @@ -240,6 +240,8 @@ static int i2sbus_add_dev(struct macio_dev *macio, } for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) { int irq = irq_of_parse_and_map(np, i); + if (!irq) + goto err; if (request_irq(irq, ints[i], 0, dev->rnames[i], dev)) goto err; dev->interrupts[i] = irq; -- 2.43.0