Commit 68ce670b authored Jan 23, 2014 by Daeseok Youn Committed by Linus Torvalds Jan 23, 2014

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>

parent 5d59e182

kernel/fork.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -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;

Admin message