From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 AC30A515884; Wed, 30 Sep 2026 16:44:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790786643; cv=none; b=ca+EWcguy5RMV59PJ5icSuD2HxPcrZW0CxrrxCumD7ma6ULiV3KcWuF2aOcYGDBELUOzYLuBR5ftS4fkZA5mv28PRz1GBcir87Sai84etHJWH6rNchJS9h7K2qcRPAgvJQJvThmxhmWC51wXvqz8Vo946pwiO1cGh8VB1XmGH+E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790786643; c=relaxed/simple; bh=Q1MAlNd2MfR6Y+Gske4Qfr8t6d0gOZ4TpHKVz8FHKe8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HL9srHLeSixDQP3cKyGRo6iK2cmW+zhHu1xJW7SWzPfCn9QfcAe7qf+NecqzsZy8/UzP6nrCQIr3vH3zwU/6oew1uD9uLjdpmdKkcmKMm1AfIV2SmblDQ3Ce9PTVPRR+1LZrwd2CnrH9dCAe+4yuPbvtTY5jeLVkJBBpdScqGjk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BR98vqyX; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="BR98vqyX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE20E1F00898; Wed, 30 Sep 2026 16:44:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790786642; bh=D3hkClvrEjKhrVc7gXb6gEU5dNYrkjnh0mI9BLMwkuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BR98vqyXQenhps3KNnHECcU3l2XD6/ixLW0kUWVP1bolqtRnVK5tIEjP2jQQwxuws VVgd4H1Q3yTl4OemZv+iqYhwZJOrgjrGIENBSeyZbIEGmlUl2/8WKQiOI7DUH3J/m9 N8YBjdURUAoZVBEVIakdP+D1+R7rogmmDw2BBUIc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Charles Keepax , Bartosz Golaszewski Subject: [PATCH 6.1 935/982] gpio: arizona: Fix runtime PM leak in arizona_gpio_direction_out() Date: Wed, 30 Sep 2026 17:27:51 +0200 Message-ID: <20260930152436.824984365@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152416.775402466@linuxfoundation.org> References: <20260930152416.775402466@linuxfoundation.org> User-Agent: quilt/0.69 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: Wentao Liang commit e9d810279f84b30738f7790c0ed15f8dd5b9024a upstream. Switching a persistent GPIO line from input to output acquires a runtime PM reference on the parent device, but if the subsequent regmap_update_bits() fails the reference is never dropped and no later direction_in() can balance it since the direction was never changed. Drop the reference on the update failure path. Fixes: 27a49ed17e22 ("gpio: arizona: Add support for GPIOs that need to be maintained") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang Reviewed-by: Charles Keepax Link: https://patch.msgid.link/20260916094701.2007509-1-vulab@iscas.ac.cn Signed-off-by: Bartosz Golaszewski Signed-off-by: Greg Kroah-Hartman --- drivers/gpio/gpio-arizona.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/drivers/gpio/gpio-arizona.c +++ b/drivers/gpio/gpio-arizona.c @@ -118,8 +118,12 @@ static int arizona_gpio_direction_out(st if (value) value = ARIZONA_GPN_LVL; - return regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset, - ARIZONA_GPN_DIR | ARIZONA_GPN_LVL, value); + ret = regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset, + ARIZONA_GPN_DIR | ARIZONA_GPN_LVL, value); + if (ret < 0 && (val & ARIZONA_GPN_DIR) && persistent) + pm_runtime_put_autosuspend(chip->parent); + + return ret; } static void arizona_gpio_set(struct gpio_chip *chip, unsigned offset, int value)