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>
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@ -1223,8 +1223,7 @@ static void xol_free_insn_slot(struct task_struct *tsk)
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return;
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slot_addr = tsk->utask->xol_vaddr;
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if (unlikely(!slot_addr || IS_ERR_VALUE(slot_addr)))
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if (unlikely(!slot_addr))
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return;
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area = tsk->mm->uprobes_state.xol_area;
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