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clk: mediatek: clk-mt7629: Add check for mtk_alloc_clk_data

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[ Upstream commit 2befa515c1bb6cdd33c262b909d93d1973a219aa ]

Add the check for the return value of mtk_alloc_clk_data() in order to
avoid NULL pointer dereference.

Fixes: 3b5e748615 ("clk: mediatek: add clock support for MT7629 SoC")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20230912093407.21505-5-jiasheng@iscas.ac.cn
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiasheng Jiang 2023-09-12 17:34:07 +08:00 committed by Greg Kroah-Hartman
parent cfa68e0ac5
commit e8ae4b49dd
1 changed files with 6 additions and 0 deletions
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6
drivers/clk/mediatek/clk-mt7629.c
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@ -581,6 +581,8 @@ static int mtk_topckgen_init(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);
@ -605,6 +607,8 @@ static int mtk_infrasys_init(struct platform_device *pdev)
int r;
clk_data = mtk_alloc_clk_data(CLK_INFRA_NR_CLK);
if (!clk_data)
return -ENOMEM;
mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks),
clk_data);
@ -633,6 +637,8 @@ static int mtk_pericfg_init(struct platform_device *pdev)
return PTR_ERR(base);
clk_data = mtk_alloc_clk_data(CLK_PERI_NR_CLK);
if (!clk_data)
return -ENOMEM;
mtk_clk_register_gates(node, peri_clks, ARRAY_SIZE(peri_clks),
clk_data);