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authorRickard Strandqvist <rickard_strandqvist@spectrumdigital.se>2014-05-30 01:11:58 +0200
committerJames Hogan <james.hogan@imgtec.com>2014-06-16 16:22:44 +0100
commit8bc613befaec184b59bf3405e8d06fafdc209484 (patch)
tree0ff4e68bb6f13879d00303c6731f406cf4682fc5 /arch/metag
parent7171511eaec5bf23fb06078f59784a3a0626b38f (diff)
downloadlinux-8bc613befaec184b59bf3405e8d06fafdc209484.tar.gz
metag: hugetlbpage: Remove null pointer checks that could never happen
There are inconsistent NULL checks in hugetlb_get_unmapped_area_existing(). The last conditional block in the loop checks vma, but vma is dereferenced after that. Due to the checks above however (bearing in mind after_huge is either 0 or 1) vma is guaranteed not to be NULL here, so remove that part of the check. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> [james.hogan@imgtec.com: remove brackets and expand commit message] Signed-off-by: James Hogan <james.hogan@imgtec.com>
Diffstat (limited to 'arch/metag')
-rw-r--r--arch/metag/mm/hugetlbpage.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
index 3c52fa6d0f8..3c32075d294 100644
--- a/arch/metag/mm/hugetlbpage.c
+++ b/arch/metag/mm/hugetlbpage.c
@@ -173,7 +173,7 @@ new_search:
mm->context.part_huge = 0;
return addr;
}
- if (vma && (vma->vm_flags & MAP_HUGETLB)) {
+ if (vma->vm_flags & MAP_HUGETLB) {
/* space after a huge vma in 2nd level page table? */
if (vma->vm_end & HUGEPT_MASK) {
after_huge = 1;