4.19-stable review patch. If anyone has any objections, please let me know.
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From: Kuan-Wei Chiu visitorckw@gmail.com
[ Upstream commit bfbea9e5667cfa9552c3d88f023386f017f6c308 ]
In cases where kcalloc() fails for the 'clk_data->clks' allocation, the code path does not handle the failure gracefully, potentially leading to a memory leak. This fix ensures proper cleanup by freeing the allocated memory for 'clk_data' before returning.
Signed-off-by: Kuan-Wei Chiu visitorckw@gmail.com Link: https://lore.kernel.org/r/20231210165040.3407545-1-visitorckw@gmail.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/hisilicon/clk-hi3620.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c index 77072c7778b9..93b4d8933797 100644 --- a/drivers/clk/hisilicon/clk-hi3620.c +++ b/drivers/clk/hisilicon/clk-hi3620.c @@ -481,8 +481,10 @@ static void __init hi3620_mmc_clk_init(struct device_node *node) return;
clk_data->clks = kcalloc(num, sizeof(*clk_data->clks), GFP_KERNEL); - if (!clk_data->clks) + if (!clk_data->clks) { + kfree(clk_data); return; + }
for (i = 0; i < num; i++) { struct hisi_mmc_clock *mmc_clk = &hi3620_mmc_clks[i];