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 4F5A83C49F for ; Wed, 15 Nov 2023 22:02:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="HfYYbgTA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E212DC433C8; Wed, 15 Nov 2023 22:02:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700085754; bh=MGz73rDYUOHgr65Hv2OSrD3lAYC4NBCqnfym/ZWeYZo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HfYYbgTABNUs31xOGjQ7zqRh+KETYUf1Ii9eYlxt3QANaWNKlSj0YRhxelQeEr9a8 P6Ybf+ZJvBv2NBQA4PTGgT6TUQn29zeuxVv8qg3RV6Olq8q/hsGyrgkzzk/ixiiogS X88BMLnte3d1q6LMrBAhQSc/VUY6r0x5oqt5zOHg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiasheng Jiang , AngeloGioacchino Del Regno , Stephen Boyd , Sasha Levin Subject: [PATCH 5.4 030/119] clk: mediatek: clk-mt6779: Add check for mtk_alloc_clk_data Date: Wed, 15 Nov 2023 17:00:20 -0500 Message-ID: <20231115220133.562433114@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115220132.607437515@linuxfoundation.org> References: <20231115220132.607437515@linuxfoundation.org> User-Agent: quilt/0.67 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 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiasheng Jiang [ Upstream commit 1f57f78fbacf630430bf954e5a84caafdfea30c0 ] Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference. Fixes: 710774e04861 ("clk: mediatek: Add MT6779 clock support") Signed-off-by: Jiasheng Jiang Link: https://lore.kernel.org/r/20230912093407.21505-2-jiasheng@iscas.ac.cn Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/mediatek/clk-mt6779.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/mediatek/clk-mt6779.c b/drivers/clk/mediatek/clk-mt6779.c index 00920182bbe63..f7b5ec749ab96 100644 --- a/drivers/clk/mediatek/clk-mt6779.c +++ b/drivers/clk/mediatek/clk-mt6779.c @@ -1216,6 +1216,8 @@ static int clk_mt6779_apmixed_probe(struct platform_device *pdev) struct device_node *node = pdev->dev.of_node; clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data); @@ -1237,6 +1239,8 @@ static int clk_mt6779_top_probe(struct platform_device *pdev) return PTR_ERR(base); clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks), clk_data); -- 2.42.0