kernel/fork.c: simplify copy_mm()
All this can happen without a single goto.
Link: https://lkml.kernel.org/r/2072685.XptgVkyDqn@devpool47
Signed-off-by: Rolf Eike Beer <eb@emlix.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/fork.c b/kernel/fork.c
index 771e0ea..784f7ca 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1396,7 +1396,6 @@ static struct mm_struct *dup_mm(struct task_struct *tsk,
static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
{
struct mm_struct *mm, *oldmm;
- int retval;
tsk->min_flt = tsk->maj_flt = 0;
tsk->nvcsw = tsk->nivcsw = 0;
@@ -1423,21 +1422,15 @@ static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
if (clone_flags & CLONE_VM) {
mmget(oldmm);
mm = oldmm;
- goto good_mm;
+ } else {
+ mm = dup_mm(tsk, current->mm);
+ if (!mm)
+ return -ENOMEM;
}
- retval = -ENOMEM;
- mm = dup_mm(tsk, current->mm);
- if (!mm)
- goto fail_nomem;
-
-good_mm:
tsk->mm = mm;
tsk->active_mm = mm;
return 0;
-
-fail_nomem:
- return retval;
}
static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)