Commit 68ce670b authored by Daeseok Youn's avatar Daeseok Youn Committed by Linus Torvalds

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: default avatarDaeseok Youn <daeseok.youn@gmail.com>
Acked-by: default avatarOleg Nesterov <oleg@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5d59e182
...@@ -805,9 +805,6 @@ static struct mm_struct *dup_mm(struct task_struct *tsk) ...@@ -805,9 +805,6 @@ static struct mm_struct *dup_mm(struct task_struct *tsk)
struct mm_struct *mm, *oldmm = current->mm; struct mm_struct *mm, *oldmm = current->mm;
int err; int err;
if (!oldmm)
return NULL;
mm = allocate_mm(); mm = allocate_mm();
if (!mm) if (!mm)
goto fail_nomem; goto fail_nomem;
......
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