6.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
[ 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 <jiasheng@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230912093407.21505-2-jiasheng@xxxxxxxxxxx
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 f33fbaee14048..fd14da075604b 100644
--- a/drivers/clk/mediatek/clk-mt6779.c
+++ b/drivers/clk/mediatek/clk-mt6779.c
@@ -1219,6 +1219,8 @@ 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);
@@ -1239,6 +1241,8 @@ 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
