From: Wang Hai <wanghai38@xxxxxxxxxx>
[ Upstream commit 75d3e7f4769d276a056efa1cc7f08de571fc9b4b ]
test_unwind() misses to call kfree(bt) in an error path.
Add the missed function call to fix it.
Fixes: 0610154650f1 ("s390/test_unwind: print verbose unwinding results")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Hai <wanghai38@xxxxxxxxxx>
Acked-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
Signed-off-by: Heiko Carstens <hca@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/s390/lib/test_unwind.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/s390/lib/test_unwind.c b/arch/s390/lib/test_unwind.c
index 32b7a30b2485d..b0b12b46bc572 100644
--- a/arch/s390/lib/test_unwind.c
+++ b/arch/s390/lib/test_unwind.c
@@ -63,6 +63,7 @@ static noinline int test_unwind(struct task_struct *task, struct pt_regs *regs,
break;
if (state.reliable && !addr) {
pr_err("unwind state reliable but addr is 0\n");
+ kfree(bt);
return -EINVAL;
}
sprint_symbol(sym, addr);
--
2.25.1
