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| author |   Roel Kluin <roel.kluin@gmail.com> | 2010-08-11 14:17:31 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 08:43:29 -0700 |
| commit | 17e465034a174d23e08cbb964aeda5e41e5d84ca (patch) | |
| tree | 212dca6a4872d496014a0ead9c34fb7ed885b4bb /arch/score | |
| parent | pc8736x_gpio: depends on X86_32 (diff) | |
| download | linux-dev-17e465034a174d23e08cbb964aeda5e41e5d84ca.tar.xz linux-dev-17e465034a174d23e08cbb964aeda5e41e5d84ca.zip | |
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.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/score/mm/tlb-score.c b/arch/score/mm/tlb-score.c index 4fa5aa5afecc..6fdb100244c8 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; |