From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794064022; b=NPe+QaxXJaOD4AkGRwvI7u6Oe2bjtQrpRNdfZtWSj1t2FXzVFYMkewswdACX3jeHPcwI PS39yo7gEE1G9xsooka6AIaNX8IabBgkl8Uqz3UIHs7bHJQkHrXLdl5XFV5cWb4Op/6/R UFIpRlNpWOaLH2rbqNqGWvfpVpR8jZgZlWt4CDwdDg4hqUE35uQO06d4Mq2At6QZp3bZn pswb6S0kjO0m3iKPcHhUHczVBigrEuy/VMJoEFHdIBo5sPBov8G/h7mjP0aj9QwZBbhy/ cdNmKg52VnXGD2kcJNBwX/S06qHkik9Fgc6DffT5W47SCnVdLSC/9Q/5HKAyY4R3FOQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794064022; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=t89zsWHqqyAvg7tb4qPG75EYPQvze/Ce51PdbQMZpig=; b=lDA3q92OnzmJD7WAQWR7cYScD5tE55Y0ef6nN7cYDnLdR0nX4KDYKTt2dARZisMOcm/D XIXPqOJHfzFpvqqeKh9EYrZFPcEIN0Z5IVpn/8Hd6ObKaR7rmjojaG+4LwIZgfr2h9o1V 8/B3Gx4nYvaVx/VksTRgVwn1CZ8QaYf7odG0REquNxfAGnMJrUjr3KLVQ88PzysZjwPc9 Nfpp1ApvCEy+fYG5b8er5rfCZEChyhtDmYg9J5u5qnGnUehBxRloMS97NGMZ6OHlJc2nB WrLK0oVy2iotjUa5AsBYkVs8g5/7kjX6ilxALjikZ0Mkt49ukOF7ueBepbctcUMPtBA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=YQTGY8io; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 819496082BED; Sat, 7 Nov 2026 15:07:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=YQTGY8io Received: by smtp.kernel.org (Postfix) with ESMTPSA id 346E01F008A1; Sat, 7 Nov 2026 15:07:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794064022; bh=t89zsWHqqyAvg7tb4qPG75EYPQvze/Ce51PdbQMZpig=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=YQTGY8iowtShqunAx28JfodAia4AQYYiOnaGO7oL4hZVi3IIWh1F3WrGfk/jvO7F/ 6eJiWRfP0PrZmWHxsG4gxRbAielDu6s2I/HN0N9dCnZ3/dPUCXWqj8w0G3OtwUg3/I 3qjorg3rDtAUhIk1UtdgpMigw7Y3wveRzOWMcNAc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Mark Brown , Sasha Levin Subject: [PATCH 7.3 0198/1257] regulator: core: Fix c_rdev reference leak in regulator_resolve_coupling() Date: Sat, 7 Nov 2026 08:41:34 -0500 Message-ID: <20261107134945.032051377@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Wentao Liang [ Upstream commit c41b69e9f76fd9632662714c1d37860468e8d773 ] of_parse_coupled_regulator() returns the coupled regulator with its device reference incremented, but regulator_resolve_coupling() returns without dropping it when the coupled regulator belongs to a different coupler, leaking the reference. Fixes: d8ca7d184b33 ("regulator: core: Introduce API for regulators coupling customization") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang Link: https://patch.msgid.link/20260917142535.2156720-1-vulab@iscas.ac.cn Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/regulator/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6a4008f387b5e..e813aeaa64ef5 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -5861,6 +5861,7 @@ static void regulator_resolve_coupling(struct regulator_dev *rdev) if (c_rdev->coupling_desc.coupler != coupler) { rdev_err(rdev, "coupler mismatch with %s\n", rdev_get_name(c_rdev)); + put_device(&c_rdev->dev); return; } -- 2.53.0