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| author | Rob Clark <robdclark@gmail.com> | 2017-06-13 16:15:36 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2017-06-16 18:16:01 +0300 |
| commit | cb1e38181a0728777057fb03fc4cddb29b7fb24d (patch) | |
| tree | 27fbe164012963de61373865d74a73a289663752 /fs | |
| parent | 42a105e9cfaf0a0c74fdac5ba4ff17d6c0b024cd (diff) | |
| download | linux-cb1e38181a0728777057fb03fc4cddb29b7fb24d.tar.xz | |
drm/msm: fix locking inconsistency for gpu->hw_init()
Most, but not all, paths where calling the with struct_mutex held. The
fast-path in msm_gem_get_iova() (plus some sub-code-paths that only run
the first time) was masking this issue.
So lets just always hold struct_mutex for hw_init(). And sprinkle some
WARN_ON()'s and might_lock() to avoid this sort of problem in the
future.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions