From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 6360614A4C7; Wed, 7 May 2025 18:44:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746643494; cv=none; b=gO7STV3jNKc/+oVIZ6P+YuJurIJNbA9McXiLBc+EwOh/JDZ3BVnkzlJCjuZCdE0GuMAPzBKXfNpq1HCSRgUN1kY20C/Sd2X/VSmccEWZwYd1nP+fx+0zYnR4YBBD2zbSQLqzoiVS3xgTci42vSep9eMBq7MjRXzxnlrbfGOpl1I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746643494; c=relaxed/simple; bh=UfDvxKVFfNr2lwLBIDRNjZAHMUlCD3h+xoJEmW92TrU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lLpFgu/0H93irkCseoOcYtjz+18f4aimpqR8kYKfiXmr7Fk9xhT7hACjmFyAULebYGBTn5JOpOPJQgfLYsPCCiCLTXA7bkPlSIqB5OSvdJ3LYAhusjFnHNVr5bDvg1r/K2R3HVgwVRedA2YJiYlGEjKnnBr4cgzcEDhO5EyG3+E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=B9wax0YK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="B9wax0YK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1B30C4CEE9; Wed, 7 May 2025 18:44:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1746643494; bh=UfDvxKVFfNr2lwLBIDRNjZAHMUlCD3h+xoJEmW92TrU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B9wax0YKsyi5ZZMRJI3POv9FBdzBpW2A5vzxOjmum+f8wHbRyg8ag+6ptHAcE1Jml dZIGmNcOAOjoEaHwwfM0zxf0hjwxt/8N2sXtsDtWPptTqwLC62T4iLhlwFxZhdTlqm mnxY7rZ/TejfjQZToaZyso7h4SEdOLSoFg70bYnU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Clark Wang , Carlos Song , Andi Shyti Subject: [PATCH 6.1 06/97] i2c: imx-lpi2c: Fix clock count when probe defers Date: Wed, 7 May 2025 20:38:41 +0200 Message-ID: <20250507183807.252596006@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250507183806.987408728@linuxfoundation.org> References: <20250507183806.987408728@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Clark Wang commit b1852c5de2f2a37dd4462f7837c9e3e678f9e546 upstream. Deferred probe with pm_runtime_put() may delay clock disable, causing incorrect clock usage count. Use pm_runtime_put_sync() to ensure the clock is disabled immediately. Fixes: 13d6eb20fc79 ("i2c: imx-lpi2c: add runtime pm support") Signed-off-by: Clark Wang Signed-off-by: Carlos Song Cc: # v4.16+ Link: https://lore.kernel.org/r/20250421062341.2471922-1-carlos.song@nxp.com Signed-off-by: Andi Shyti Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-imx-lpi2c.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -616,9 +616,9 @@ static int lpi2c_imx_probe(struct platfo return 0; rpm_disable: - pm_runtime_put(&pdev->dev); - pm_runtime_disable(&pdev->dev); pm_runtime_dont_use_autosuspend(&pdev->dev); + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); return ret; }