From: Jason Ekstrand jason@jlekstrand.net
[ Upstream commit 235c3610d5f02ee91244239b43cd9ae8b4859dff ]
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... Signed-off-by: Christian König christian.koenig@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/ttm/ttm_device.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index 3d9c62b93e29..ef6e0c042bb1 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; }