utask->xol_vaddr is either zero or valid, remove the bogus
IS_ERR_VALUE() check in xol_free_insn_slot().
Signed-off-by: Oleg Nesterov <o...@redhat.com>
---
kernel/events/uprobes.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index ad1245d..ed4fcbe 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1223,8 +1223,7 @@ static void xol_free_insn_slot(struct task_struct *tsk)
return;
slot_addr = tsk->utask->xol_vaddr;
-
- if (unlikely(!slot_addr || IS_ERR_VALUE(slot_addr)))
+ if (unlikely(!slot_addr))
return;
area = tsk->mm->uprobes_state.xol_area;
--
1.5.5.1
--
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