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authorLinus Torvalds <torvalds@linux-foundation.org>2021-03-19 03:57:34 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-03-19 03:57:34 +0300
commit8b12a62a4e3ed4ae99c715034f557eb391d6b196 (patch)
tree14d93a9750ed512e36ef16a61e8b3796d5cb442a /include
parent81aa0968b7ea6dbabcdcda37dc8434dca6e1565b (diff)
parente94c55b8e0a0bbe9a026250cf31e2fa45957d776 (diff)
downloadlinux-8b12a62a4e3ed4ae99c715034f557eb391d6b196.tar.xz
Merge tag 'drm-fixes-2021-03-19' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie: "Regular fixes pull, pretty small set of fixes, a couple of i915 and amdgpu, one ttm, one nouveau and one omap. Probably smaller than usual for this time, so we'll see if something pops up next week or if this will continue to stay small. Summary: ttm: - Make ttm_bo_unpin() not wraparound on too many unpins omap: - Fix coccicheck warning in omap amdgpu: - DCN 3.0 gamma fixes - DCN 2.1 corrupt screen fix i915: - Workaround async flip + VT-d frame corruption on HSW/BDW - Fix NMI watchdog crash due to uninitialized OA buffer use on gen12+ nouveau: - workaround oops with bo syncing" * tag 'drm-fixes-2021-03-19' of git://anongit.freedesktop.org/drm/drm: nouveau: Skip unvailable ttm page entries drm/amd/display: Remove MPC gamut remap logic for DCN30 drm/amd/display: Correct algorithm for reversed gamma drm/omap: dsi: fix unsigned expression compared with zero i915/perf: Start hrtimer only if sampling the OA buffer drm/i915: Workaround async flip + VT-d corruption on HSW/BDW drm/amd/display: Copy over soc values before bounding box creation drm/ttm: make ttm_bo_unpin more defensive
Diffstat (limited to 'include')
-rw-r--r--include/drm/ttm/ttm_bo_api.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index e17be324d95f..b8ca13664fa2 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -612,9 +612,11 @@ static inline void ttm_bo_pin(struct ttm_buffer_object *bo)
static inline void ttm_bo_unpin(struct ttm_buffer_object *bo)
{
dma_resv_assert_held(bo->base.resv);
- WARN_ON_ONCE(!bo->pin_count);
WARN_ON_ONCE(!kref_read(&bo->kref));
- --bo->pin_count;
+ if (bo->pin_count)
+ --bo->pin_count;
+ else
+ WARN_ON_ONCE(true);
}
int ttm_mem_evict_first(struct ttm_bo_device *bdev,