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 A855635BDDD; Fri, 9 Jan 2026 12:45:21 +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=1767962721; cv=none; b=dhUOlnCfqtlKy7glSgvU5r8/ECU+4cKd9WTz8SMcfqn+xBTeHs6nNaAXdRmeYZpDH/P5jZIQhI2NpvigqYrOuMtOfEsBH5Q2Ri58MaFXKvWqyzJ3mFNaSWrqzvAxNpwoIrH3IPKTZJbInk20rXxTHXRR7uLUUaNK5fNMyaYvZzA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767962721; c=relaxed/simple; bh=IJEkLNGRnvafm35lAn0vDbLjG/LFKB2g/Rh3yjUwzUQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=s6Kq2lHC+wDc189Kz17AEcsWoPKQGnHrcM+P1hE9JLd5OgVJpip14dfb+HHbrbdbjHK5UPuQdxczSxgXfsGHmhPSEbTghtHpxNmlHZi14s+S35BR6dJUIUBUI6ZR+6Qnsv6Xhe3QwtvpZ2BEp8KMP6+R9haX43vipJoXEFdF3PE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ubkXfn+/; 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="ubkXfn+/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32ECAC4CEF1; Fri, 9 Jan 2026 12:45:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767962721; bh=IJEkLNGRnvafm35lAn0vDbLjG/LFKB2g/Rh3yjUwzUQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ubkXfn+/iIC8Wsv3DoIKuRKGC228dpP2yF0lYSQAoGQqbjIDzfW/dTm5felyP++TF MltGIDkVy2Npntv72OH6xOsX/yUtkjwOqD5Vh7bOD3RZOm2RWlHhasC/uAah0AMWbZ 210mF87Ar3MMhmhuMdTuwRhua4mt4/v7/ipzW9U4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Johan Hovold , Lee Jones Subject: [PATCH 6.1 465/634] mfd: altera-sysmgr: Fix device leak on sysmgr regmap lookup Date: Fri, 9 Jan 2026 12:42:23 +0100 Message-ID: <20260109112135.046758326@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260109112117.407257400@linuxfoundation.org> References: <20260109112117.407257400@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org 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: Johan Hovold commit ccb7cd3218e48665f3c7e19eede0da5f069c323d upstream. Make sure to drop the reference taken to the sysmgr platform device when retrieving its driver data. Note that holding a reference to a device does not prevent its driver data from going away. Fixes: f36e789a1f8d ("mfd: altera-sysmgr: Add SOCFPGA System Manager") Cc: stable@vger.kernel.org # 5.2 Signed-off-by: Johan Hovold Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman --- drivers/mfd/altera-sysmgr.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/mfd/altera-sysmgr.c +++ b/drivers/mfd/altera-sysmgr.c @@ -118,6 +118,8 @@ struct regmap *altr_sysmgr_regmap_lookup sysmgr = dev_get_drvdata(dev); + put_device(dev); + return sysmgr->regmap; } EXPORT_SYMBOL_GPL(altr_sysmgr_regmap_lookup_by_phandle);