From nobody Thu Apr 2 14:09:58 2026 Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3E8E633DEE9; Tue, 10 Feb 2026 09:07:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770714469; cv=none; b=Ra4V2RJ6CCMXbjsPWxX3k+KAyC6Ep9ymghKYZF1q2Ox0dFTbrjhZZl5lr84hY88hVnbNy/XzBKTBjcMLmqhMYEraO0dfX9zY/moLhmwPWq73XJsS8wGsbidGxM4TP/vpdWX6Fj24Y9/H3CAcw9PjOsIIFhxpBrC018MGCbcn59c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770714469; c=relaxed/simple; bh=TAqqQeAk+DVoCThnev7AmUZgI+z8/GCI13dAZ3V2hy0=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=YXX4So+ddrLFqycpl0YDhMHAMKGATtLRnbo+BAKpgv5ll9sIywodxCdAGtiaC1N6Rdz7Swuvd0fO7UC3evxEEx7zNI/oM0PgLo2VICoCY7YOul1xNGi2A8CsymoeUiw8h8C3wMbgua6+Mwx+8vXw3jjTrY7RzReeWndZwTYk1nw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from localhost (unknown [124.16.138.129]) by APP-03 (Coremail) with SMTP id rQCowABHY9pW9Yppq28oCA--.3613S2; Tue, 10 Feb 2026 17:07:34 +0800 (CST) From: Chen Ni To: rui.silva@linaro.org, gregkh@linuxfoundation.org, laurent.pinchart@ideasonboard.com, balbi@ti.com Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Chen Ni Subject: [PATCH] usb: isp1760: Add missing error check for platform_get_resource() Date: Tue, 10 Feb 2026 17:02:02 +0800 Message-Id: <20260210090202.2332349-1-nichen@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: rQCowABHY9pW9Yppq28oCA--.3613S2 X-Coremail-Antispam: 1UD129KBjvdXoW7XF18Cry5KryDAF48Gr1xXwb_yoWfJFc_CF 48uFZ7GF4FkF90kr4Utrya9ay2kw1DXr4kXanFyry3tF9Igr18Xw4Uur4rA3WUWF48JFyv kryqyry3ur1UKjkaLaAFLSUrUUUU8b8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbaxFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s 1ln4kS14v26r1Y6r17M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02 F40Ex7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv67AKxVW8JVWxJwAm72CE4I kC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7MxkF 7I0En4kS14v26r1q6r43MxkIecxEwVAFwVW8uwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4 IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1r MI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJV WUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF04k26cxKx2IYs7xG6r1j 6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYx BIdaVFxhVjvjDU0xZFpf9x0JUIFAJUUUUU= X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ Content-Type: text/plain; charset="utf-8" Check the return value of platform_get_resource() to prevent potential NULL pointer dereference when the memory resource is unavailable. Fixes: 7ef077a8ad35 ("usb: isp1760: Move driver from drivers/usb/host/ to d= rivers/usb/isp1760/") Signed-off-by: Chen Ni Reviewed-by: Laurent Pinchart --- drivers/usb/isp1760/isp1760-if.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/isp1760/isp1760-if.c b/drivers/usb/isp1760/isp1760= -if.c index a64190addba6..60f81ec81373 100644 --- a/drivers/usb/isp1760/isp1760-if.c +++ b/drivers/usb/isp1760/isp1760-if.c @@ -196,6 +196,8 @@ static int isp1760_plat_probe(struct platform_device *p= dev) int ret; =20 mem_res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem_res) + return -EINVAL; =20 irq =3D platform_get_irq(pdev, 0); if (irq < 0) --=20 2.25.1