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kmssink: Don't leak GEM primed from DMABuf

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This otherwise breaks DMABuf reclaiming. This is not visible from
userspace, but inside the kernel, the DRM driver will hold a ref to the
DMABuf object. With a V4L2 driver allocating those DMABuf, it then
prevent changing the resolution and re-allocation new buffers.

https://bugzilla.gnome.org/show_bug.cgi?id=782774
This commit is contained in:
Nicolas Dufresne 2017-07-06 17:20:56 -04:00
parent 6e3fe4eaab
commit cfadd5a936
1 changed files with 12 additions and 0 deletions
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12
sys/kms/gstkmsallocator.c
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@ -483,6 +483,18 @@ gst_kms_allocator_dmabuf_import (GstAllocator * allocator, gint * prime_fds,
if (!gst_kms_allocator_add_fb (alloc, tmp, offsets, vinfo))
goto failed;
for (i = 0; i < n_planes; i++) {
struct drm_gem_close arg = { tmp->gem_handle[i], };
gint err;
err = drmIoctl (alloc->priv->fd, DRM_IOCTL_GEM_CLOSE, &arg);
if (err)
GST_WARNING_OBJECT (allocator,
"Failed to close GEM handle: %s %d", strerror (errno), errno);
tmp->gem_handle[i] = 0;
}
return tmp;
/* ERRORS */