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 8D6673009E2; Tue, 6 Jan 2026 17:35:20 +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=1767720920; cv=none; b=PGLcqmCdB3dxUIkS6JyETlGF6L4XtkK46R2YAMTG8KmLAoWGQC3vKiMsBjZaz51e+16HX3n66AlD9gv8mm3xulQKvjSEewVhkrataSrJacZE8nL4Rzv27hwhF7BhUQyoUAZ4xcmkkga5ENdtG/FGWkNBTjQMJNNqO2/fOT+e+GI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767720920; c=relaxed/simple; bh=A+Zrq+5hsBh1jKuMIOmUIWOfiu7ilJc6PO14pzeK7Qw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WAqzRgcShvIhgaz1HfDR/g0v8evTb2PgjUnVXkDowGVoV3IGdGjm67Slb2+JNCl2EQcP68QMne/bn+1Wep9nYrZWRUM/DGGJEuYlG8CJ42pV61yHUHQWa4WrixalSYi2rdjXQCUTI0ktECsO+yLjvzUn/MVeRE9ypV8kUQ0Pu/o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=aQzlV7va; 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="aQzlV7va" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AED07C16AAE; Tue, 6 Jan 2026 17:35:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767720920; bh=A+Zrq+5hsBh1jKuMIOmUIWOfiu7ilJc6PO14pzeK7Qw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aQzlV7vaEEQPiZeFQWlexaVDuY08ux8CKkK3JCXWW2d1VyT8VgLyvRe2M81UL070r T2r0WXZAQgHzqewkggzqGJIltEF24datv+SyLN6JwyLQGubnY8cdr+ZFXU3Anh+TuW Gw/552tOXS6gBiXhGvMkWiLOFqEbBvDqfuBQ39uE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Johan Hovold , Lee Jones Subject: [PATCH 6.12 380/567] mfd: altera-sysmgr: Fix device leak on sysmgr regmap lookup Date: Tue, 6 Jan 2026 18:02:42 +0100 Message-ID: <20260106170505.398333378@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260106170451.332875001@linuxfoundation.org> References: <20260106170451.332875001@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 6.12-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);