From: Jason Ekstrand <jason@xxxxxxxxxxxxxx>
[ 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@xxxxxxxxxxxxxx>
Fixes: 62b53b37e4b1 ("drm/ttm: use a static ttm_bo_global instance")
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20210720181357.2760720-5-jason@xxxxxxxxxxxxxx
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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;
}
--
2.30.2
