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author | David S. Miller <davem@davemloft.net> | 2021-03-26 01:31:22 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2021-03-26 01:31:22 +0300 |
commit | efd13b71a3fa31413f8d15342e01d44b60b0a432 (patch) | |
tree | 2ed1b299e25538c5a60485a1047507b49d3e0ecf /drivers/gpu/drm/nouveau/nouveau_bo.c | |
parent | 84c7f6c33f42a12eb036ebf0f0e3670799304120 (diff) | |
parent | 002322402dafd846c424ffa9240a937f49b48c42 (diff) | |
download | linux-efd13b71a3fa31413f8d15342e01d44b60b0a432.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bo.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 2375711877cf..f2720a006199 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -551,12 +551,17 @@ nouveau_bo_sync_for_device(struct nouveau_bo *nvbo) if (!ttm_dma) return; + if (!ttm_dma->pages) { + NV_DEBUG(drm, "ttm_dma 0x%p: pages NULL\n", ttm_dma); + return; + } /* Don't waste time looping if the object is coherent */ if (nvbo->force_coherent) return; - for (i = 0; i < ttm_dma->num_pages; ++i) { + i = 0; + while (i < ttm_dma->num_pages) { struct page *p = ttm_dma->pages[i]; size_t num_pages = 1; @@ -582,12 +587,17 @@ nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo) if (!ttm_dma) return; + if (!ttm_dma->pages) { + NV_DEBUG(drm, "ttm_dma 0x%p: pages NULL\n", ttm_dma); + return; + } /* Don't waste time looping if the object is coherent */ if (nvbo->force_coherent) return; - for (i = 0; i < ttm_dma->num_pages; ++i) { + i = 0; + while (i < ttm_dma->num_pages) { struct page *p = ttm_dma->pages[i]; size_t num_pages = 1; |