[PATCH 6.1 0520/1146] clk: samsung: Fix memory leak in _samsung_clk_register_pll()

Greg Kroah-Hartman
2022-12-28T16:07:28Z

From: Xiu Jianfeng <xiujianfeng@huawei.com>

[ Upstream commit 5174e5b0d1b669a489524192b6adcbb3c54ebc72 ]

If clk_register() fails, @pll->rate_table may have allocated memory by
kmemdup(), so it needs to be freed, otherwise will cause memory leak
issue, this patch fixes it.

Fixes: 3ff6e0d8d64d ("clk: samsung: Add support to register rate_table for samsung plls")
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Link: https://lore.kernel.org/r/20221123032015.63980-1-xiujianfeng@huawei.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/samsung/clk-pll.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index fe383471c5f0..0ff28938943f 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -1583,6 +1583,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
if (ret) {
pr_err("%s: failed to register pll clock %s : %d\n",
__func__, pll_clk->name, ret);
+ kfree(pll->rate_table);
kfree(pll);
return;
}
--
2.35.1