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Subject[PATCH] ep93xx: clock: Fix UAF in mach-ep93xx/clock.c
Date
Fix following coccicheck errors:
./arch/arm/mach-ep93xx/clock.c:351:9-12: ERROR: reference preceded by free on line 349
./arch/arm/mach-ep93xx/clock.c:458:9-12: ERROR: reference preceded by free on line 456

Fix two more potential UAF errors.

Link: https://lore.kernel.org/all/20220418121212.634259061@linuxfoundation.org/
Fixes: 9645ccc7bd7a ("ep93xx: clock: convert in-place to COMMON_CLK")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
---
arch/arm/mach-ep93xx/clock.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index 4fa6ea5461b7..35f3734e512c 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -345,8 +345,10 @@ static struct clk_hw *clk_hw_register_ddiv(const char *name,
psc->hw.init = &init;

clk = clk_register(NULL, &psc->hw);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
kfree(psc);
+ return ERR_CAST(clk);
+ }

return &psc->hw;
}
@@ -452,8 +454,10 @@ static struct clk_hw *clk_hw_register_div(const char *name,
psc->hw.init = &init;

clk = clk_register(NULL, &psc->hw);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
kfree(psc);
+ return ERR_CAST(clk);
+ }

return &psc->hw;
}
--
2.35.3
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