diff mbox series

[4.9,30/47] MIPS: Alchemy: Fix memleak in alchemy_clk_setup_cpu

Message ID 20201123121807.006932308@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg KH Nov. 23, 2020, 12:22 p.m. UTC 
From: Zhang Qilong <zhangqilong3@huawei.com>

[ Upstream commit ac3b57adf87ad9bac7e33ca26bbbb13fae1ed62b ]

If the clk_register fails, we should free h before
function returns to prevent memleak.

Fixes: 474402291a0ad ("MIPS: Alchemy: clock framework integration of onchip clocks")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/alchemy/common/clock.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c
index 7ba7ea0a22f80..e6d0044393b08 100644
--- a/arch/mips/alchemy/common/clock.c
+++ b/arch/mips/alchemy/common/clock.c
@@ -151,6 +151,7 @@  static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
 {
 	struct clk_init_data id;
 	struct clk_hw *h;
+	struct clk *clk;
 
 	h = kzalloc(sizeof(*h), GFP_KERNEL);
 	if (!h)
@@ -163,7 +164,13 @@  static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
 	id.ops = &alchemy_clkops_cpu;
 	h->init = &id;
 
-	return clk_register(NULL, h);
+	clk = clk_register(NULL, h);
+	if (IS_ERR(clk)) {
+		pr_err("failed to register clock\n");
+		kfree(h);
+	}
+
+	return clk;
 }
 
 /* AUXPLLs ************************************************************/