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 BC1662459D1; Mon, 13 Apr 2026 16:19:16 +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=1776097156; cv=none; b=pM/Y+AvWWf0cwposdZqRyLNNMmwt0zd4SNhYJTPspbGXlj3GMpbJWqjzV8tHsnqA412zVoahOI3O/tp4jOYrJ81SvwPAeXI+VOxypgscszqDBoYqn/EbzjpUePTXi1SUobYGZpj0MtaJMzq8oX7sg7zb7VBEFzfieVio4Dt0hFQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776097156; c=relaxed/simple; bh=eyLRCCOFc0fTg3y+1Pyy2SxsWucPt43EfPavbClx9/Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WVTqw5bUpRK7Zf0o+sX1nKMgMc3vWWHxMMNlcZyriX6Z16tLzLMZT47M9p7BMzrfRNgi7IWPjjyuqE3s6D0mv3DJQpTFq/U2e71Hs5aNljITTRaiQiADoqNP4jwnd7Mu5GiJEQccqsFaZOJQmxNTGSDWR7Gvoz/ylqIReVSKluw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=uKTeqxXR; 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="uKTeqxXR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51DEDC2BCAF; Mon, 13 Apr 2026 16:19:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776097156; bh=eyLRCCOFc0fTg3y+1Pyy2SxsWucPt43EfPavbClx9/Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uKTeqxXRFEmNDmdU65Oe+st9UY9whsG5njDP+C8+Qgjc5HZi353Qg2u5zN4bkGcOm Zpt7n0PCT26AGMEGynRC4lKGGGPqnrpAEjDvQ3ZJXIPE16RDNoicqvvP04QOowEGPl +EA3Vl83DKygEMH+BvSjuq8RqIAhUgncTux21oxo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mikko Perttunen , Miaoqian Lin , Johan Hovold , Stephen Boyd , Sasha Levin Subject: [PATCH 5.15 028/570] clk: tegra: tegra124-emc: fix device leak on set_rate() Date: Mon, 13 Apr 2026 17:52:39 +0200 Message-ID: <20260413155831.476774605@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260413155830.386096114@linuxfoundation.org> References: <20260413155830.386096114@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold [ Upstream commit da61439c63d34ae6503d080a847f144d587e3a48 ] Make sure to drop the reference taken when looking up the EMC device and its driver data on first set_rate(). Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference. Fixes: 2db04f16b589 ("clk: tegra: Add EMC clock driver") Fixes: 6d6ef58c2470 ("clk: tegra: tegra124-emc: Fix missing put_device() call in emc_ensure_emc_driver") Cc: stable@vger.kernel.org # 4.2: 6d6ef58c2470 Cc: Mikko Perttunen Cc: Miaoqian Lin Signed-off-by: Johan Hovold Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/tegra/clk-tegra124-emc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/tegra/clk-tegra124-emc.c b/drivers/clk/tegra/clk-tegra124-emc.c index 0f6fb776b2298..5f1af6dfe7154 100644 --- a/drivers/clk/tegra/clk-tegra124-emc.c +++ b/drivers/clk/tegra/clk-tegra124-emc.c @@ -197,8 +197,8 @@ static struct tegra_emc *emc_ensure_emc_driver(struct tegra_clk_emc *tegra) tegra->emc_node = NULL; tegra->emc = platform_get_drvdata(pdev); + put_device(&pdev->dev); if (!tegra->emc) { - put_device(&pdev->dev); pr_err("%s: cannot find EMC driver\n", __func__); return NULL; } -- 2.51.0