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drm/i915/gem: Free the fence after a fence-chain lookup failure 

If dma_fence_chain_find_seqno() reports an error, it does so in its
preamble before it disposes of the input fence. On handling the
error, we need to drop the reference to the fence.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2292
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 13149e8baf ("drm/i915: add syncobj timeline support")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200806161056.17593-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Chris Wilson 2020-08-06 17:10:56 +01:00 committed by Joonas Lahtinen
parent 736e785f9b
commit da1ea128a6
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
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@ -2289,6 +2289,7 @@ add_timeline_fence_array(struct i915_execbuffer *eb,
if (err && !(user_fence.flags & I915_EXEC_FENCE_SIGNAL)) {
DRM_DEBUG("Syncobj handle missing requested point %llu\n", point);
dma_fence_put(fence);
drm_syncobj_put(syncobj);
return err;
}