From 68ce670b6e8edc30551862e7f6a306e45389e189 Mon Sep 17 00:00:00 2001
From: Daeseok Youn <daeseok.youn@gmail.com>
Date: Thu, 23 Jan 2014 15:55:48 -0800
Subject: [PATCH] kernel/fork.c: remove redundant NULL check in dup_mm()

current->mm doesn't need a NULL check in dup_mm().  Becasue dup_mm() is
used only in copy_mm() and current->mm is checked whether it is NULL or
not in copy_mm() before calling dup_mm().

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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