[PATCH] ttm: use NULL instead of 0 for ttm_bo_reserve()'s pointer arg.

[Martin Kepplinger]

Fix a sparse warning: ttm_bo_reserve()'s last argument is a
pointer to a struct, so use NULL as nullpointer.

Signed-off-by: Martin Kepplinger <mart...@posteo.de>
---
this applies to next-20140613. Please ignore if annoyingly irrelevant.

 drivers/gpu/drm/ttm/ttm_bo.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 4ab9f71..cd0e15e 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -412,7 +412,7 @@ static void ttm_bo_cleanup_refs_or_queue(struct 
ttm_buffer_object *bo)
        int ret;
 
        spin_lock(&glob->lru_lock);
-       ret = __ttm_bo_reserve(bo, false, true, false, 0);
+       ret = __ttm_bo_reserve(bo, false, true, false, NULL);
 
        spin_lock(&bdev->fence_lock);
        (void) ttm_bo_wait(bo, false, false, true);
@@ -514,7 +514,7 @@ static int ttm_bo_cleanup_refs_and_unlock(struct 
ttm_buffer_object *bo,
                        return ret;
 
                spin_lock(&glob->lru_lock);
-               ret = __ttm_bo_reserve(bo, false, true, false, 0);
+               ret = __ttm_bo_reserve(bo, false, true, false, NULL);
 
                /*
                 * We raced, and lost, someone else holds the reservation now,
@@ -577,11 +577,11 @@ static int ttm_bo_delayed_delete(struct ttm_bo_device 
*bdev, bool remove_all)
                        kref_get(&nentry->list_kref);
                }
 
-               ret = __ttm_bo_reserve(entry, false, true, false, 0);
+               ret = __ttm_bo_reserve(entry, false, true, false, NULL);
                if (remove_all && ret) {
                        spin_unlock(&glob->lru_lock);
                        ret = __ttm_bo_reserve(entry, false, false,
-                                              false, 0);
+                                              false, NULL);
                        spin_lock(&glob->lru_lock);
                }
 
@@ -726,7 +726,7 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev,
 
        spin_lock(&glob->lru_lock);
        list_for_each_entry(bo, &man->lru, lru) {
-               ret = __ttm_bo_reserve(bo, false, true, false, 0);
+               ret = __ttm_bo_reserve(bo, false, true, false, NULL);
                if (!ret)
                        break;
        }
@@ -1595,7 +1595,7 @@ int ttm_bo_synccpu_write_grab(struct ttm_buffer_object 
*bo, bool no_wait)
         * Using ttm_bo_reserve makes sure the lru lists are updated.
         */
 
-       ret = ttm_bo_reserve(bo, true, no_wait, false, 0);
+       ret = ttm_bo_reserve(bo, true, no_wait, false, NULL);
        if (unlikely(ret != 0))
                return ret;
        spin_lock(&bdev->fence_lock);
@@ -1630,7 +1630,7 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
 
        spin_lock(&glob->lru_lock);
        list_for_each_entry(bo, &glob->swap_lru, swap) {
-               ret = __ttm_bo_reserve(bo, false, true, false, 0);
+               ret = __ttm_bo_reserve(bo, false, true, false, NULL);
                if (!ret)
                        break;
        }
-- 
1.7.10.4

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