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 40A581DDF0; Fri, 25 Sep 2026 12:44:10 +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=1790340258; cv=none; b=s9GVTP4+K7dGVp1ShFcJQBbUDNVY9NKiUJA3z+NAldioXC7r7lnw8NBg0XrIm1zVSDm8C9byRpS8We+bZesVx+d7PBdTBSdOWdfglNFEOCX3WLIBQWRfxYC50GYSLBZVkwCQqbYCvmEC1B2vqA0dnoWodXk2tuL4+rrxgYgvPbc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790340258; c=relaxed/simple; bh=CJFAQOkUzWgF+EC1cZLsrdUiZ0G3WvQSHEIij0xmplc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NSyOrOh+OqnK2nAW08ZNYe8Uj+4LgFcSbCPoFUyDwKVT54YL8/wJ/3MyW1O30vN9NKQ2V7LhR5fNpz6001OVP6Szm3SzDva7vMcaY5jI6G/K6BDfVdo8jd5dgZhPzO+dPmnecX4jr8+mjNKGAD2CkpwG4a467TMILN7QTFSMsuI= 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=oGJdHN66; 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="oGJdHN66" 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=cn SU6GqQIeDCppBz4GkPyo+sahu/qVXUJGMn2TYQqfQ=; b=oGJdHN66e6d0b//37F kO6II7/W5g2tQyQjdnNC4m7vlZ4tVhXSn0FFK6eAkq0WZs0dMctoaveZH5PVTRrs 7qfrgr3pYcJCdgKnS+L9D9dtXWKgyKPlyX8MkAotN9P7ZTiyxGf9P1n3/bJWAQmW lejSV+//hyxkygfI0QnP8Kvpc= Received: from pc.localdomain (unknown []) by gzsmtp2 (Coremail) with SMTP id PSgvCgC3l8p2bLZqMEjpBA--.27791S5; Fri, 25 Sep 2026 20:43:39 +0800 (CST) From: Jiale Yao To: =?UTF-8?q?Nuno=20S=C3=A1?= , Michael Hennerich , Ramona Gradinariu , Antoniu Miclaus , Jonathan Cameron , David Lechner , Andy Shevchenko , linux@analog.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jiale Yao , stable@vger.kernel.org Subject: [PATCH 3/4] iio: accel: adxl380: reject devices without match data Date: Fri, 25 Sep 2026 20:43:30 +0800 Message-Id: <20260925124332.2090895-4-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260925124332.2090895-1-yaojiale02@163.com> References: <20260925124332.2090895-1-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:PSgvCgC3l8p2bLZqMEjpBA--.27791S5 X-Coremail-Antispam: 1Uf129KBjvJXoW7XF1rWFWfGF4rtF4kAr1kKrg_yoW8JF4rpF Z8GFyFkry3Wa1Ut3yUJryjva45Ww4rK3yFg3W8A3WF9rs5Zry5GF1agFyrGry8KFWrJFy2 y39rXF18W3WDZr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0zRY2N_UUUUU= X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC7xuBu2q2bHvi9gAA3R SPI driver_override allows a device to bind to this driver without matching either the OF or SPI device ID table. In that case, spi_get_device_match_data() returns NULL. adxl380_spi_probe() passes the result to adxl380_probe(), which dereferences chip_info to set the IIO device name and operations, causing a NULL pointer dereference. Commit 572a00852635 ("iio: dac: ad5686: missing NULL check on match data") fixed the same driver_override issue in another SPI driver. Reject devices without match data in the SPI frontend. Fixes: df36de13677a ("iio: accel: add ADXL380 driver") Cc: stable@vger.kernel.org Signed-off-by: Jiale Yao --- drivers/iio/accel/adxl380_spi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/accel/adxl380_spi.c b/drivers/iio/accel/adxl380_spi.c index ae8467f4e6c0..8ffb3a8690a6 100644 --- a/drivers/iio/accel/adxl380_spi.c +++ b/drivers/iio/accel/adxl380_spi.c @@ -25,6 +25,8 @@ static int adxl380_spi_probe(struct spi_device *spi) struct regmap *regmap; chip_data = spi_get_device_match_data(spi); + if (!chip_data) + return -ENODATA; regmap = devm_regmap_init_spi(spi, &adxl380_spi_regmap_config); if (IS_ERR(regmap)) -- 2.34.1