mmap: EINVAL not ENOMEM when rejecting VM_GROWS

Currently error is -ENOMEM when rejecting VM_GROWSDOWN|VM_GROWSUP
from shared anonymous: hoist the file case's -EINVAL up for both.

Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/mm/mmap.c b/mm/mmap.c
index 22e1a0b2f70c..09ce2cae07ca 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1266,8 +1266,9 @@ munmap_back:
         vma->vm_pgoff = pgoff;
         INIT_LIST_HEAD(&vma->anon_vma_chain);
 
+        error = -EINVAL;        /* when rejecting VM_GROWSDOWN|VM_GROWSUP */
+
         if (file) {
-                error = -EINVAL;
                 if (vm_flags & (VM_GROWSDOWN|VM_GROWSUP))
                         goto free_vma;
                 if (vm_flags & VM_DENYWRITE) {