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

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[ Upstream commit 0884393c63cc9a1772f7121a6645ba7bd76feeb9 ]

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/20230912093407.21505-4-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 17:34:06 +08:00 • committed by Greg Kroah-Hartman
commit cfa68e0ac5
1 changed files with 4 additions and 0 deletions
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4
drivers/clk/mediatek/clk-mt7629-eth.c
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@ -83,6 +83,8 @@ static int clk_mt7629_ethsys_init(struct platform_device *pdev)
int r;
clk_data = mtk_alloc_clk_data(CLK_ETH_NR_CLK);
if (!clk_data)
return -ENOMEM;
mtk_clk_register_gates(node, eth_clks, CLK_ETH_NR_CLK, clk_data);
@ -105,6 +107,8 @@ static int clk_mt7629_sgmiisys_init(struct platform_device *pdev)
int r;
clk_data = mtk_alloc_clk_data(CLK_SGMII_NR_CLK);
if (!clk_data)
return -ENOMEM;
mtk_clk_register_gates(node, sgmii_clks[id++], CLK_SGMII_NR_CLK,
clk_data);