This fixes bug introduced in commit "mm: kill vma flag VM_CAN_NONLINEAR",
vma->vm_ops must be checked before checking vm_ops->remap_pages.
Signed-off-by: Konstantin Khlebnikov <khlebni...@openvz.org>
Reported-by: Sasha Levin <levinsasha...@gmail.com>
---
mm/fremap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/fremap.c b/mm/fremap.c
index 3899a86..a0aaf0e 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -169,7 +169,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start,
unsigned long, size,
if (vma->vm_private_data && !(vma->vm_flags & VM_NONLINEAR))
goto out;
- if (!vma->vm_ops->remap_pages)
+ if (!vma->vm_ops || !vma->vm_ops->remap_pages)
goto out;
if (start < vma->vm_start || start + size > vma->vm_end)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
