From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 33E1E3CC9F6; Fri, 25 Sep 2026 13:18:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790342297; cv=none; b=bIQMXcNjBwotJO800IUux7DwHdCJiuvmmNeaBTcC5RBgwXVrMxYaixP8WGyzBC331GxZSEPtRoNYcrgQxUVGmKpZCdPF9qP4WLg3wEzElwq0LmtPuZ04/kqrK6WZ/LFqilrZmipD0pO0F8Cy3w9BRe8ci1++1QQQs7yblGQyEuo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790342297; c=relaxed/simple; bh=gb6i8FzjevRIjvzpN9E3g5hh/QcDTZNQ4RlXQyLVGKw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Ys0aBw4PS8GX6GKuwKs2vpUJUOOcan7Wpzi+2G2/nlUY+DTpm8ZdlH2Fir5PXk6qEUjm3RckrqFOp/GFU3d1j4Jv5eO06SVvQweboGyHQ2PV26U+oc+iJTqnbGukeBKASvSW/ss1sHyV0dL9r5oYJL+My8i5SIIZbhN0qK72zJQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=kOGnFiRT; arc=none smtp.client-ip=220.197.31.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="kOGnFiRT" 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=Rp PMYKB8KsAlddsQUtxh3FJtCq1RUYTUiISqyX70d88=; b=kOGnFiRTQTH71YotDI +OMmLvmXHI/a7sjPLD5FlGapj9YfmMdq+7kWPvvcuDO5SZXPbBb8yPV/ZMVTbGHQ jT3oPa1uU59Wo/4Je/ug7Kur2mRzyzma1sAtHhmFlPXnrOOkT3Fb6PMGw9fjnSb+ Y8oN7UCvP0dIs559ahMyW5JaM= Received: from pc.localdomain (unknown []) by gzsmtp1 (Coremail) with SMTP id PCgvCgC3fy9zdLZq8jiZBA--.52716S3; Fri, 25 Sep 2026 21:17:42 +0800 (CST) From: Jiale Yao To: Michael Hennerich , Rodrigo Alencar , =?UTF-8?q?Nuno=20S=C3=A1?= , Jonathan Cameron , David Lechner , Andy Shevchenko , linux-iio@vger.kernel.org, linux@analog.com, linux-kernel@vger.kernel.org Cc: Jiale Yao Subject: [PATCH 1/7] iio: amplifiers: ad8366: reject devices without match data Date: Fri, 25 Sep 2026 21:17:30 +0800 Message-Id: <20260925131738.2200612-2-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260925131738.2200612-1-yaojiale02@163.com> References: <20260925131738.2200612-1-yaojiale02@163.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:PCgvCgC3fy9zdLZq8jiZBA--.52716S3 X-Coremail-Antispam: 1Uf129KBjvdXoWruFWDGFykuF1UGw15GFW5GFg_yoWDArc_Cw n7Za4xXwn7Ars5KF12yr1SvrZ5KryxtrZYyr4vvayFgry7Xr1rXFn8Zr47Ar47uFyxJFn8 WF1jgr4rAw13WjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRZ5rctUUUUU== X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC8BaCvGq2dHaDAwAA3G A device bound through driver_override need not match an entry in the driver tables. In that case spi_get_device_match_data() returns NULL, but ad8366_probe() later dereferences the result while setting up the IIO device. Reject devices without match data before using the chip information. Fixes: d5e02d0d00b9 ("iio: amplifiers: ad8366: add device tree support") Signed-off-by: Jiale Yao --- drivers/iio/amplifiers/ad8366.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c index e12f8604f59f..9adff120de1a 100644 --- a/drivers/iio/amplifiers/ad8366.c +++ b/drivers/iio/amplifiers/ad8366.c @@ -326,6 +326,8 @@ static int ad8366_probe(struct spi_device *spi) st->spi = spi; st->info = spi_get_device_match_data(spi); + if (!st->info) + return -ENODATA; enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_HIGH); if (IS_ERR(enable_gpio)) -- 2.34.1