From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 6BA8B3B9D80; Sat, 30 May 2026 18:06:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780164404; cv=none; b=o+D91dk5iruuKn36qktkZcE+Pz8btfweP7bKtw96u6nDJw43qV7rqbB6g+zykHbOkPitdJyReI6+VPVEf0V5Txs4QchQ5jzvZ5xQeYOL6yIs+xx3EZg8LHa/fuClut1od/rHLVMn6fq9YeJqsv5Av0BptDVOER7KVbkS7G/G2Mk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780164404; c=relaxed/simple; bh=ag7dSodl40SGLgbWPxtpyo18P3Fz/Evpr9HD/PaP1jg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uQbGbq10ydYBMIv8RmFh3ZIlABTfEEsMSFyK7zMu10OpGWqyNb4f3ZTH1dBHxJXCYe9+Fze3WHZLYfWdwNKC8ljbaU5x36OwjtNTaj6T+c8PQoE7T8cS7Evcu89Zo3mLIEOMXZ1hq1sdfpV6qz3wYnZNxtMcMVkMixwjtTXaFY4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=QGwv2uva; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="QGwv2uva" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A84521F00893; Sat, 30 May 2026 18:06:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780164403; bh=1K6H0iIhRVpVpJRjpnSaKDxURCJ+urFIV9U+oyTYABw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=QGwv2uvaw7fgfcEscbs35v17rOHdIk7Y4gsBYmSyV/o/ngSnsNWkTodLE+MZdl2wI CooVpoqo3RNPfk/2QwORB5AQdx3ZcVoNZU/heIXQpBE/FUi8o1PJtEzvnRXAJTeMFA N88tEQDimRmfAbAGJGSSaH/leli46wX6xxtXwkrk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Felix Gu , Frank Li , Peng Fan , Abel Vesa , Sasha Levin Subject: [PATCH 5.15 544/776] clk: imx: imx6q: Fix device node reference leak in of_assigned_ldb_sels() Date: Sat, 30 May 2026 18:04:18 +0200 Message-ID: <20260530160254.233905191@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160240.228940103@linuxfoundation.org> References: <20260530160240.228940103@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: Felix Gu [ Upstream commit 9faf207208951460f3f7eefbc112246c8d28ff1b ] The function of_assigned_ldb_sels() calls of_parse_phandle_with_args() but never calls of_node_put() to release the reference, causing a memory leak. Fix this by adding proper cleanup calls on all exit paths. Fixes: 5d283b083800 ("clk: imx6: Fix procedure to switch the parent of LDB_DI_CLK") Signed-off-by: Felix Gu Reviewed-by: Frank Li Reviewed-by: Peng Fan Link: https://patch.msgid.link/20260203-clk-imx6q-v3-2-6cd2696bb371@gmail.com Signed-off-by: Abel Vesa Signed-off-by: Sasha Levin --- drivers/clk/imx/clk-imx6q.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c index b14c1606466d7..a95f07718b653 100644 --- a/drivers/clk/imx/clk-imx6q.c +++ b/drivers/clk/imx/clk-imx6q.c @@ -183,9 +183,11 @@ static void of_assigned_ldb_sels(struct device_node *node, } if (clkspec.np != node || clkspec.args[0] >= IMX6QDL_CLK_END) { pr_err("ccm: parent clock %d not in ccm\n", index); + of_node_put(clkspec.np); return; } parent = clkspec.args[0]; + of_node_put(clkspec.np); rc = of_parse_phandle_with_args(node, "assigned-clocks", "#clock-cells", index, &clkspec); @@ -193,9 +195,11 @@ static void of_assigned_ldb_sels(struct device_node *node, return; if (clkspec.np != node || clkspec.args[0] >= IMX6QDL_CLK_END) { pr_err("ccm: child clock %d not in ccm\n", index); + of_node_put(clkspec.np); return; } child = clkspec.args[0]; + of_node_put(clkspec.np); if (child != IMX6QDL_CLK_LDB_DI0_SEL && child != IMX6QDL_CLK_LDB_DI1_SEL) -- 2.53.0