Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.13 122/223] drm/ttm: Force re-init if ttm_global_init() fails | Date | Mon, 26 Jul 2021 17:38:34 +0200 |
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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@jlekstrand.net 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; } -- 2.30.2
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