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| author |   Jason Ekstrand <jason@jlekstrand.net> | 2021-07-20 13:13:55 -0500 |
|---|---|---|
| committer |   Christian König <christian.koenig@amd.com> | 2021-07-21 08:34:43 +0200 |
| commit | 235c3610d5f02ee91244239b43cd9ae8b4859dff (patch) | |
| tree | 61990eca9c2f0230d0f797cf3e74d37deb85f10f | |
| parent | drm: Return -ENOTTY for non-drm ioctls (diff) | |
| download | wireguard-linux-235c3610d5f02ee91244239b43cd9ae8b4859dff.tar.xz wireguard-linux-235c3610d5f02ee91244239b43cd9ae8b4859dff.zip | |
drm/ttm: Force re-init if ttm_global_init() fails
If we have a failure, decrement the reference count so that the next
call to ttm_global_init() will actually do something instead of assume
everything is all set up.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Fixes: 62b53b37e4b1 ("drm/ttm: use a static ttm_bo_global instance")
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210720181357.2760720-5-jason@jlekstrand.net
Signed-off-by: Christian König <christian.koenig@amd.com>
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_device.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index 5f31acec3ad7..519deea8e39b 100644 --- a/drivers/gpu/drm/ttm/ttm_device.c +++ b/drivers/gpu/drm/ttm/ttm_device.c @@ -100,6 +100,8 @@ static int ttm_global_init(void) debugfs_create_atomic_t("buffer_objects", 0444, ttm_debugfs_root, &glob->bo_count); out: + if (ret) + --ttm_glob_use_count; mutex_unlock(&ttm_global_mutex); return ret; } |