[PATCH] ep93xx: clock: Fix UAF in mach-ep93xx/clock.c

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; }