[PATCH 5.15 218/317] clk: hisilicon: hi3559a: Fix an erroneous devm_kfree()

Sasha Levin
2024-03-24T23:38:32Z

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 64c6a38136b74a2f18c42199830975edd9fbc379 ]

'p_clk' is an array allocated just before the for loop for all clk that
need to be registered.
It is incremented at each loop iteration.

If a clk_register() call fails, 'p_clk' may point to something different
from what should be freed.

The best we can do, is to avoid this wrong release of memory.

Fixes: 6c81966107dc ("clk: hisilicon: Add clock driver for hi3559A SoC")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/773fc8425c3b8f5b0ca7c1d89f15b65831a85ca9.1705850155.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/hisilicon/clk-hi3559a.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/clk/hisilicon/clk-hi3559a.c b/drivers/clk/hisilicon/clk-hi3559a.c
index 9ea1a80acbe8b..0272276550ff1 100644
--- a/drivers/clk/hisilicon/clk-hi3559a.c
+++ b/drivers/clk/hisilicon/clk-hi3559a.c
@@ -491,7 +491,6 @@ static void hisi_clk_register_pll(struct hi3559av100_pll_clock *clks,

clk = clk_register(NULL, &p_clk->hw);
if (IS_ERR(clk)) {
- devm_kfree(dev, p_clk);
dev_err(dev, "%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
--
2.43.0