[PATCH] score: Fix dereference of NULL pointer in local_flush_tlb_page()

From: Roel Kluin
Date: Mon Feb 08 2010 - 16:11:00 EST


Don't dereference vma if it's NULL.

Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
---
diff --git a/arch/score/mm/tlb-score.c b/arch/score/mm/tlb-score.c
index 4fa5aa5..6fdb100 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;
--
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