From dd1f30d68fa98eb672c0a259297b761656a9025f Mon Sep 17 00:00:00 2001 From: Jiasheng Jiang Date: Tue, 12 Sep 2023 17:34:03 +0800 Subject: [PATCH] clk: mediatek: clk-mt6765: Add check for mtk_alloc_clk_data [ Upstream commit b82681042724924ae3ba0f2f2eeec217fa31e830 ] Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference. Fixes: 1aca9939bf72 ("clk: mediatek: Add MT6765 clock support") Signed-off-by: Jiasheng Jiang Link: https://lore.kernel.org/r/20230912093407.21505-1-jiasheng@iscas.ac.cn Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/mediatek/clk-mt6765.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/clk/mediatek/clk-mt6765.c b/drivers/clk/mediatek/clk-mt6765.c index 665981fc411f..2c6a52ff5564 100644 --- a/drivers/clk/mediatek/clk-mt6765.c +++ b/drivers/clk/mediatek/clk-mt6765.c @@ -738,6 +738,8 @@ static int clk_mt6765_apmixed_probe(struct platform_device *pdev) } 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); @@ -773,6 +775,8 @@ static int clk_mt6765_top_probe(struct platform_device *pdev) } clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_fixed_clks(fixed_clks, ARRAY_SIZE(fixed_clks), clk_data); @@ -813,6 +817,8 @@ static int clk_mt6765_ifr_probe(struct platform_device *pdev) } clk_data = mtk_alloc_clk_data(CLK_IFR_NR_CLK); + if (!clk_data) + return -ENOMEM; mtk_clk_register_gates(node, ifr_clks, ARRAY_SIZE(ifr_clks), clk_data); -- 2.34.1