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 5B3D13644AD; Tue, 6 Jan 2026 17:53:34 +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=1767722014; cv=none; b=pA9TZXz9Msq8/XfdW+qpa/4uiEPVwKZLFOHFrsQERtFqzRffs0m9cUxW10XlG7YOzw8+XDuFcyu/8UicH1GC5M4K5XDN2u87P7o+E252liSFtVzYCh/UXWaNw3T4Qmd07x1GttyZQKoP5RQ2z+zckjLdDM2DQI48jFkmZBmGn1s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767722014; c=relaxed/simple; bh=7/3bJL4vdnCaxqwQK1HtezW2nINNZCcVFSEvn2nXjs4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ChdVXFQjNucxrlWN7/U58scJpJHvqJMNxa/2QGnkqPnewL1nKw+2YRgzqp9Hb7SxwYaViNEQ2pTpeVnDyDfonlELomSKdogZ3BlHn+4oT+2rN86ABwzBDS0kaZm0+sPGLnogDFefaV9i0yNgwae5TOGBYdYvLdjrRRtKwtEXOZ8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=PdvEN4TR; 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="PdvEN4TR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D189DC116C6; Tue, 6 Jan 2026 17:53:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767722014; bh=7/3bJL4vdnCaxqwQK1HtezW2nINNZCcVFSEvn2nXjs4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PdvEN4TR7+dUIFd+2z0Jge287pcwx7r6GemcUYmUsa5Qpy9mGiwEER/HSgNj5LaOt HmDZ8bUY5kyXs0S5odRoOPCCPci9HFtWFgoM9Ij3AygvAeXd4WbwbS1XfQZ92MllH7 EiVgVjE7jX1EmdoxmHhUh0GKbsX9hwtgTjVA1GJ4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Johan Hovold , Lee Jones Subject: [PATCH 6.18 140/312] mfd: altera-sysmgr: Fix device leak on sysmgr regmap lookup Date: Tue, 6 Jan 2026 18:03:34 +0100 Message-ID: <20260106170552.906748071@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260106170547.832845344@linuxfoundation.org> References: <20260106170547.832845344@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 6.18-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 @@ -117,6 +117,8 @@ 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);