[ARM] S3C: Add register defines for new style framebuffer

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

diff --git a/mm/mmap.c b/mm/mmap.c
index de14ac21e5b55d647fa732f5a6230ce2e2764824..d4855a682ab622863f85352a5353bd45fa1440e4 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1704,7 +1704,7 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr)
        vma = find_vma_prev(mm, addr, &prev);
        if (vma && (vma->vm_start <= addr))
                return vma;
-       if (expand_stack(prev, addr))
+       if (!prev || expand_stack(prev, addr))
                return NULL;
        if (prev->vm_flags & VM_LOCKED) {
                if (mlock_vma_pages_range(prev, addr, prev->vm_end) < 0)