X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmmap.c;h=d4855a682ab622863f85352a5353bd45fa1440e4;hb=cdf0c7de29a87cc600ef367893523ea15938da4e;hp=de14ac21e5b55d647fa732f5a6230ce2e2764824;hpb=e61467e9b6c88e97560873603cf9aceaf7435480;p=linux-2.6-omap-h63xx.git

diff --git a/mm/mmap.c b/mm/mmap.c
index de14ac21e5b..d4855a682ab 100644
--- 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)