Check whether the VMA has a vm_ops before calling close, just
like we check vm_ops before calling open a few dozen lines
higher up in the function.
Signed-off-by: Rik van Riel <riel@xxxxxxxxxx>
Reported-by: Dan Carpenter <error27@xxxxxxxxx>
diff --git a/mm/mmap.c b/mm/mmap.c
index f90ea92..456ec6f 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1977,7 +1977,8 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
return 0;
/* Clean everything up if vma_adjust failed. */
- new->vm_ops->close(new);
+ if (new->vm_ops && new->vm_ops->close)
+ new->vm_ops->close(new);
if (new->vm_file) {
if (vma->vm_flags & VM_EXECUTABLE)
removed_exe_file_vma(mm);
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxxx For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>