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authorOleg Nesterov <oleg@redhat.com>2012-12-31 18:37:11 +0100
committerOleg Nesterov <oleg@redhat.com>2013-02-08 17:47:13 +0100
commitaf4355e91f15812df8608925738c91be57c580dd (patch)
treed50a8fb2a2240f00e8d72a804de237552d7f1b36 /kernel/events/uprobes.c
parent608e7427c0a06de0d70374a9fd7defc8eb228b7e (diff)
downloadop-kernel-dev-af4355e91f15812df8608925738c91be57c580dd.zip
op-kernel-dev-af4355e91f15812df8608925738c91be57c580dd.tar.gz
uprobes: Kill the bogus IS_ERR_VALUE(xol_vaddr) check
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 <oleg@redhat.com> Acked-by: Anton Arapov <anton@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/events/uprobes.c')
-rw-r--r--kernel/events/uprobes.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 071edcb..f6c7062 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;
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