atyfb: Properly save PCI state before changing PCI PM level

[deliverable/linux.git] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index 22bfa7a47a0b613cf9c39ee6e7d24f7dc3c9cf77..baa999e87cd21d2f9e67c8e3b1093bb6831513fb 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1999,7 +1999,7 @@ gotten:
         * Don't let another task, with possibly unlocked vma,
         * keep the mlocked page.
         */
-       if (vma->vm_flags & VM_LOCKED) {
+       if ((vma->vm_flags & VM_LOCKED) && old_page) {
                lock_page(old_page);    /* for LRU manipulation */
                clear_page_mlock(old_page);
                unlock_page(old_page);