From nobody Mon Sep 28 18:36:41 2026 Received: from mail-m49198.qiye.163.com (mail-m49198.qiye.163.com [45.254.49.198]) (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 2355630F540; Tue, 18 Aug 2026 14:28:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.254.49.198 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787063309; cv=none; b=WZS4cS27kDXiqMr2deeGojNs4EG9X1Rau5sJf+oc9z2quc2BioIxdBatZbytmh92c5lalqfHaPAhMKTfZ+6QICqPgy+ZwH1eg0sPTHLM4JRwc+uWNNyEgBLVPC9Vu4QxO5tHWP3ih82c72Id79WCexb79FW6PEdYESrL+/HD66c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787063309; c=relaxed/simple; bh=BmJMDvIB5tZvlWW3RPhRyMRf5zBfwAa7UO+xuPD2i+w=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=blYwXCz1GbAbS11F0WiI1kR/q21+1ThicaLJtC9PpzzXj5hiW1b92UAmUGuETnd26MoDew7cfSRQ2UXC0ABbuNN1Sh9p0FpkyUS0HxVjupSisi6tprG0mXQS7okULTsnYTZeLwuBIeYzRP/EiQRnCltIUorXHE1c4/2PU6uONuk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn; spf=pass smtp.mailfrom=seu.edu.cn; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b=SI1eXrur; arc=none smtp.client-ip=45.254.49.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b="SI1eXrur" Received: from PC-202605011814.localdomain (unknown [222.191.246.242]) by smtp.qiye.163.com (Hmail) with ESMTP id 4a6e04b0d; Tue, 18 Aug 2026 22:28:17 +0800 (GMT+08:00) From: Runyu Xiao To: Antoniu Miclaus Cc: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , David Lechner , Nuno Sa , Andy Shevchenko , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Runyu Xiao , Jianhao Xu Subject: [PATCH] iio: admv1013: initialize callback mutex before registering notifier Date: Tue, 18 Aug 2026 22:28:11 +0800 Message-Id: <20260818142811.2264343-1-runyu.xiao@seu.edu.cn> X-Mailer: git-send-email 2.34.1 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-HM-Tid: 0aa01545e65103a1kunmda569f1e1140f2 X-HM-MType: 10 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVkZHU9LVhpPGE9IGk5DQhoaH1YeHw 5VEwETFhoSFyQUDg9ZV1kYEgtZQVlJSUlVSkJKVUlPTVVJT0lZV1kWGg8SFR0UWUFZT0tIVUpLSE pPSExVSktLVUpCS0tZBg++ DKIM-Signature: a=rsa-sha256; b=SI1eXrurPfUxEb4nvj5ytcIYZWSHfzTHJG+o5/2Pn0M5ZajzC/LQAqOBAK3e0culp+DmLWSh2WM23vKUuetu/bPq8Sn5x2uHAR5MudqdkUhLpdo1tY2cyIANN0xj0YURjj0RFm1T0r/ZDvKBCnwpDAxBUn4CArr01zOcC+gzUAw=; c=relaxed/relaxed; s=default; d=seu.edu.cn; v=1; bh=7Q9kKJLvsmdB2XcgcCutx5ITfkGMgdUqIVLVh9TwIaI=; h=date:mime-version:subject:message-id:from; Content-Type: text/plain; charset="utf-8" admv1013_probe() registers a clock notifier whose callback takes st->lock on POST_RATE_CHANGE. Initialize the mutex before devm_clk_notifier_register() so the callback cannot observe an uninitialized lock during probe. Fixes: da35a7b526d9 ("iio: frequency: admv1013: add support for ADMV1013") Cc: stable@vger.kernel.org Signed-off-by: Runyu Xiao --- drivers/iio/frequency/admv1013.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/frequency/admv1013.c b/drivers/iio/frequency/admv1= 013.c index d8e8d541990f..932f094f2b04 100644 --- a/drivers/iio/frequency/admv1013.c +++ b/drivers/iio/frequency/admv1013.c @@ -594,12 +594,12 @@ static int admv1013_probe(struct spi_device *spi) "failed to get the LO input clock\n"); =20 st->nb.notifier_call =3D admv1013_freq_change; + mutex_init(&st->lock); + ret =3D devm_clk_notifier_register(&spi->dev, st->clkin, &st->nb); if (ret) return ret; =20 - mutex_init(&st->lock); - ret =3D admv1013_init(st, vcm_uv); if (ret) { dev_err(&spi->dev, "admv1013 init failed\n"); --=20 2.34.1