From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.4]) (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 A28883C9ED0; Fri, 25 Sep 2026 13:18:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790342293; cv=none; b=VgB/v1Rm2AX08XLXGORQRY7OnjhhwMXVmIAcpfXQgHr6OiWPKvU9sCm5/cmd7bGS0hCvva2l8DCccSROcc4xQRW//4e3Q/mWrAPRgUTuBX9esLXzgkDjhXvF5kyE6b8Pzp41BevAuwasxCfqzaF85p9WzYiS3XQ+eSmLSdEaJPM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790342293; c=relaxed/simple; bh=11A7xLBCs5rNEIv5AHJFPXFRptu17BOjRex/Ja6Qfv4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=QHqslUy3Wypqmf+aRluq6SGyLa/ia5vU9gafeUO0OrylIk4WKiCJItknOJMvFcXmO25nHtFvzEZvkYr5UwNoHxHtGq7cyw46XTfMVs/odZ8Gxl5WQmzxr/utwqZ8ozwpEs5N2uTqRm8vEqXKW3WvtkbNas2DmHCI830QRDTFacw= 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=okZu40tr; arc=none smtp.client-ip=220.197.31.4 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="okZu40tr" 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=KV vTWvC2kkH0m00+G/2IkeekWvZNi6D2tfD5y+9wsOw=; b=okZu40trohZHTimwPX VEuMwj1tXtADXVIW3V8VLOE8tD6BaAnmAerIGBgDsFq5qn/lsbnPaYScSvfrzBwb uBD4iTnIVrfmUg9kZxMokBJph94TiNAKYRCM3BJ2xstyCskapoaft+g3wEeW1Vk5 whrG1CpwS0vRNcsQuGdnPgPBQ= Received: from pc.localdomain (unknown []) by gzsmtp1 (Coremail) with SMTP id PCgvCgC3fy9zdLZq8jiZBA--.52716S6; Fri, 25 Sep 2026 21:17:45 +0800 (CST) From: Jiale Yao To: =?UTF-8?q?Nuno=20S=C3=A1?= , Michael Hennerich , Antoniu Miclaus , Jonathan Cameron , David Lechner , Andy Shevchenko , linux@analog.com, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jiale Yao Subject: [PATCH 4/7] iio: frequency: adf4377: reject devices without match data Date: Fri, 25 Sep 2026 21:17:33 +0800 Message-Id: <20260925131738.2200612-5-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--.52716S6 X-Coremail-Antispam: 1Uf129KBjvdXoWruFWDGFykuF1UGw15ur45Wrg_yoWDWFb_Cw 18uryxWrn0v3WkKF1DKrn0vr93KF9YqFWF9rsayrWfW347uryfAFnY9FWxJwsrCFWIyFn8 J3WkAF4F934fWjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRZBMKDUUUUU== X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbCzhmDvWq2dHkNfQAA3I 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 the result is later dereferenced by the property parsing and initialization paths. Reject devices without match data before continuing probe. Fixes: 6140a92cd086 ("iio: frequency: adf4377: add adf4378 support") Signed-off-by: Jiale Yao --- drivers/iio/frequency/adf4377.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/frequency/adf4377.c b/drivers/iio/frequency/adf4377.c index 4dd19a9aa994..d1e5bb062474 100644 --- a/drivers/iio/frequency/adf4377.c +++ b/drivers/iio/frequency/adf4377.c @@ -1060,6 +1060,9 @@ static int adf4377_probe(struct spi_device *spi) st->regmap = regmap; st->spi = spi; st->chip_info = spi_get_device_match_data(spi); + if (!st->chip_info) + return -ENODATA; + mutex_init(&st->lock); ret = adf4377_properties_parse(st); -- 2.34.1