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authorRoel Kluin <roel.kluin@gmail.com>2010-08-11 14:17:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-12 08:43:29 -0700
commit17e465034a174d23e08cbb964aeda5e41e5d84ca (patch)
tree212dca6a4872d496014a0ead9c34fb7ed885b4bb /arch/score
parent7b958090458e99456b8c1a0f644923b6b9fdd358 (diff)
downloadlinux-2.6.38-lt-ux500-17e465034a174d23e08cbb964aeda5e41e5d84ca.tar.gz
score: fix dereference of NULL pointer in local_flush_tlb_page()
Don't dereference vma if it's NULL. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/score')
-rw-r--r--arch/score/mm/tlb-score.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/score/mm/tlb-score.c b/arch/score/mm/tlb-score.c
index 4fa5aa5afec..6fdb100244c 100644
--- a/arch/score/mm/tlb-score.c
+++ b/arch/score/mm/tlb-score.c
@@ -158,7 +158,7 @@ void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
{
- if (!vma || vma->vm_mm->context != 0) {
+ if (vma && vma->vm_mm->context != 0) {
unsigned long flags;
int oldpid, newpid, idx;
unsigned long vma_ASID = vma->vm_mm->context;