From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F18F4606A334 for ; Tue, 20 Oct 2026 09:37:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=y3J9AYx+; dkim=pass (1024-bit key, unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b=Japwh3Kf DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=J3R/yD9txiKhDcdkpR168UOWMiy5EvmjNi1jSQMpyTg=; b=y3J9AYx+nUy5lOoVbBEnCL5/oe F7DKKjBFWRAIIejs75v3lecXY3Qfo41xtt5y9KpHUnG0EKrQNgv0R+0a05NL3vFW5AMtgpAqOEJLy P/YBg1Ol+5oCiZ5wpHV8+EGCLsglZxGn/t/dZPcKWUOUZ1G7kgQK3Y4Q1sHC1kXHt/fN8pCLAHvVc 8jUcRZHCxwha+3mxiZYF93j32vqvX3ij4LIObPBpJCU003K8ZPW+uILjXWeQRZ0Ijw9uz6++pezlL eb1dHDQsTjb9umZ23cRb6hQr9p3df9q2koz2QFFtDZa01ZXoTu70bZmCOG02T5S2VtjwZ2GcU1wI/ QZs4tyOQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xJ6HF-00000009IOI-3sHq; Tue, 20 Oct 2026 09:37:01 +0000 Received: from m16.mail.163.com ([117.135.210.2]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xJ6HA-00000009IIw-2bmj for linux-arm-kernel@lists.infradead.org; Tue, 20 Oct 2026 09:36:58 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=J3 R/yD9txiKhDcdkpR168UOWMiy5EvmjNi1jSQMpyTg=; b=Japwh3Kf6G0uYqhpEZ LW22YhLSZ2jVThdBByZYXRcWi3i6HfE2WMHbfKFjnAUR3BMGCGbcO40RrlEv0gsg /5ENuYM4Xo8AJp0E7SN1jD6Mc1g3sM//+IWoFF5pkXCQJroBAPQtemaAynYbC3/m d+mdgDB36u9gDcoklHYl8Xfeg= Received: from pc.localdomain (unknown []) by gzsmtp1 (Coremail) with SMTP id PCgvCgD3_4ImNtdqupV5Aw--.29320S3; Tue, 20 Oct 2026 17:36:41 +0800 (CST) From: Jiale Yao To: Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Laurentiu Mihalcea , Shawn Guo , Daniel Baluta , imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Subject: [PATCH 1/3] bus: imx-aipstz: reject devices without match data Date: Tue, 20 Oct 2026 17:36:33 +0800 Message-Id: <20261020093637.1654161-2-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261020093637.1654161-1-yaojiale02@163.com> References: <20261020093637.1654161-1-yaojiale02@163.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: PCgvCgD3_4ImNtdqupV5Aw--.29320S3 X-Coremail-Antispam: 1Uf129KBjvdXoWrZr1ftrWfur45ZryxXr4rAFb_yoWfKwc_uF Z5XFyxZF15CF1Dtw1rt3ZxZ3yakr1Iqrn7Xr4xtasaq347Zw1fXrZ3XFWrCrZ7u3WIyFZ8 Gry7ZF4fuwnIgjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU8qhF7UUUUU== X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC7wkoYmrXNimKSwAA3P X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261020_023657_089398_76A82C42 X-CRM114-Status: GOOD ( 10.03 ) X-Spam-Score: -1.8 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Platform driver_override can bind a device to this driver without a matching OF entry. In that case, of_device_get_match_data() returns NULL and imx_aipstz_apply_default() dereferences it. Reject devices without match data before applying the default configuration. Fixes: 796cba2dd4d9 ("bus: add driver for IMX AIPSTZ bridge") Cc: stable@vger.kernel.org Signed-off-by: Jiale Yao --- drivers/bus/imx-aipstz.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/bus/imx-aipstz.c b/drivers/bus/imx-aipstz.c index 83371e5b35a2..9f74cbcd47ff 100644 --- a/drivers/bus/imx-aipstz.c +++ b/drivers/bus/imx-aipstz.c @@ -61,6 +61,8 @@ static int imx_aipstz_probe(struct platform_device *pdev) "failed to get/ioremap AC memory\n"); data->default_cfg = of_device_get_match_data(&pdev->dev); + if (!data->default_cfg) + return -ENODATA; imx_aipstz_apply_default(data); -- 2.34.1