Messages in this thread Patch in this message | | | From | Brian Yip <> | Subject | [PATCH v2 2/2] drm/ttm: Reset ttm_bo_glob when initialized | Date | Tue, 16 Apr 2019 01:50:35 +0000 |
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Always initialize ttm_bo_glob from a pristine state when its use_count is 0. Persist use_count so that ttm_bo_glob can later be released.
Signed-off-by: Brian Yip <itsbriany@gmail.com> --- drivers/gpu/drm/ttm/ttm_bo.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 988416fb8a0b..d95762a90654 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1543,12 +1543,16 @@ static int ttm_bo_global_init(void) { struct ttm_bo_global *glob = &ttm_bo_glob; int ret = 0; - unsigned i; + unsigned i, uc; mutex_lock(&ttm_global_mutex); if (++glob->use_count > 1) goto out; + uc = glob->use_count; + memset(glob, 0, sizeof(struct ttm_bo_global)); + glob->use_count = uc; + ret = ttm_mem_global_init(&ttm_mem_glob); if (ret) goto out; -- 2.20.1
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