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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>
hifive-unleashed-5.1
Daeseok Youn 2014-01-23 15:55:48 -08:00 committed by Linus Torvalds
parent 5d59e18270
commit 68ce670b6e
1 changed files with 0 additions and 3 deletions
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kernel/fork.c
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@ -805,9 +805,6 @@ static struct mm_struct *dup_mm(struct task_struct *tsk)
struct mm_struct *mm, *oldmm = current->mm;
int err;
if (!oldmm)
return NULL;
mm = allocate_mm();
if (!mm)
goto fail_nomem;