When removing a VMA from the tree fails due to no memory, do not free the VMA since a reference still exists.
Cc: stable@vger.kernel.org Fixes: 8220543df148 ("nommu: remove uses of VMA linked list") Signed-off-by: Liam R. Howlett Liam.Howlett@oracle.com ---
Changes since v1: - Added 'Cc: stable@vger.kernel.org' to commit message
mm/nommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/nommu.c b/mm/nommu.c index c8252f01d5db..844af5be7640 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1509,7 +1509,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len, struct list erase_whole_vma: if (delete_vma_from_mm(vma)) ret = -ENOMEM; - delete_vma(mm, vma); + else + delete_vma(mm, vma); return ret; }