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 D01243FE25; Mon, 22 Jan 2024 15:19:13 +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=1705936753; cv=none; b=AdUsRaY2aF7lnxNsWiqNwVuaUQ/0UoSrRJAuMRMeVR7j/xSw44wb7GLz1e1Ca8PECZMdAjsBHwXo6duSmE/0HIchuqJ7tyLBCXImFh54ZkqC+QT91zg4PsTKEmFHkl58GcqudmW9wO4V60TPiijP7zctaaa2v5tuRYGBJVwVCSk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705936753; c=relaxed/simple; bh=RSfFW5hWnDVynWV4jW6qkfYMtLyQ16JOdwenWKS7Wo0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=TtCstxglVcWWzY/jtbWL9dx/v9KzH4uid2sxq/tavb8DZ7tOcAT4osE7zYvpOt7dlLd4pmiJPBP9kCd16RotfZo+vbsT9GLLcZCr/ejvOt2HUyRO30llWCb+ti2e+KiML81lzbcyNgBvH3Nk9Dvo6c3NTv8Es3Y5mAt6TepKqVE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iDkZUEgy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="iDkZUEgy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B65AC433C7; Mon, 22 Jan 2024 15:19:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705936753; bh=RSfFW5hWnDVynWV4jW6qkfYMtLyQ16JOdwenWKS7Wo0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iDkZUEgylSi0pA2H5Sr+O9eH3PK4lIZt/Iae/D9aQ8aH06E+rhK9S/c843zNQZeHG CjApAI+3I/mbgX4a7zArpHF+/LbECkq281LEli4qJjWirhQ4AYpHeCy0rRVsYjoBRv Y972ACG6e9thn5YFdDY+d4SXQz1+CqyTwW1bZjUaHo592/TMP7RG21Xdp6cvf4Yc+d xKHAs4aadRz8PO9RagC/5nhf0uXT8HJ01v6vUwExStFLS+XV7Sx1Inb2qq7oEfgv+J +MNe+7ZziyHLA1jl4BEuqIYsAy967fCMqpdfOo6KkCW3D1WqBpoKb+ilef3PK82yuU Qy9eIKqos3q4A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kuan-Wei Chiu , Stephen Boyd , Sasha Levin , mturquette@baylibre.com, duje.mihanovic@skole.hr, conor.dooley@microchip.com, linux-clk@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 19/23] clk: mmp: pxa168: Fix memory leak in pxa168_clk_init() Date: Mon, 22 Jan 2024 10:17:59 -0500 Message-ID: <20240122151823.997644-19-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122151823.997644-1-sashal@kernel.org> References: <20240122151823.997644-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 4.19.305 Content-Transfer-Encoding: 8bit From: Kuan-Wei Chiu [ Upstream commit 2fbabea626b6467eb4e6c4cb7a16523da12e43b4 ] In cases where mapping of mpmu/apmu/apbc registers fails, the code path does not handle the failure gracefully, potentially leading to a memory leak. This fix ensures proper cleanup by freeing the allocated memory for 'pxa_unit' before returning. Signed-off-by: Kuan-Wei Chiu Link: https://lore.kernel.org/r/20231210175232.3414584-1-visitorckw@gmail.com Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/mmp/clk-of-pxa168.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clk/mmp/clk-of-pxa168.c b/drivers/clk/mmp/clk-of-pxa168.c index f110c02e83cb..9674c6c06dca 100644 --- a/drivers/clk/mmp/clk-of-pxa168.c +++ b/drivers/clk/mmp/clk-of-pxa168.c @@ -258,18 +258,21 @@ static void __init pxa168_clk_init(struct device_node *np) pxa_unit->mpmu_base = of_iomap(np, 0); if (!pxa_unit->mpmu_base) { pr_err("failed to map mpmu registers\n"); + kfree(pxa_unit); return; } pxa_unit->apmu_base = of_iomap(np, 1); if (!pxa_unit->apmu_base) { pr_err("failed to map apmu registers\n"); + kfree(pxa_unit); return; } pxa_unit->apbc_base = of_iomap(np, 2); if (!pxa_unit->apbc_base) { pr_err("failed to map apbc registers\n"); + kfree(pxa_unit); return; } -- 2.43.0