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| author |   Christian König <christian.koenig@amd.com> | 2020-08-19 15:27:48 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2020-08-20 14:03:10 +0200 |
| commit | 0b06286579b81449b1e8f14f88d3a8db091fd443 (patch) | |
| tree | 9b2a34ce9e74eb386987ca6c124ab8caa09ad50a /drivers/gpu/drm/ttm/ttm_tt.c | |
| parent | drm/gma500: fix error check (diff) | |
| download | linux-dev-0b06286579b81449b1e8f14f88d3a8db091fd443.tar.xz linux-dev-0b06286579b81449b1e8f14f88d3a8db091fd443.zip | |
drm/ttm: fix broken merge between drm-next and drm-misc-next
drm-next reverted the changes to ttm_tt_create() to do the
NULL check inside the function, but drm-misc-next adds new
users of this approach.
Re-apply the NULL check change inside the function to fix this.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/386628/
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_tt.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 9aa4fbe386e6..1ccf1ef050d6 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -50,6 +50,9 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc) dma_resv_assert_held(bo->base.resv); + if (bo->ttm) + return 0; + if (bdev->need_dma32) page_flags |= TTM_PAGE_FLAG_DMA32; @@ -67,7 +70,6 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc) page_flags |= TTM_PAGE_FLAG_SG; break; default: - bo->ttm = NULL; pr_err("Illegal buffer object type\n"); return -EINVAL; } |