drm/ttm: fix incorrect logic in ttm_bo_io path

This path isn't used by radeon yet, but future drivers will want it,
so fix it right.

Reported-by: Luca Barbieri <luca@luca-barbieri.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 609a85a..668dbe8 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -320,7 +320,7 @@ ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,
                return -EFAULT;
 
        driver = bo->bdev->driver;
-       if (unlikely(driver->verify_access)) {
+       if (unlikely(!driver->verify_access)) {
                ret = -EPERM;
                goto out_unref;
        }