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| author | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2022-11-10 23:13:45 +0300 |
|---|---|---|
| committer | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2022-11-11 23:49:47 +0300 |
| commit | 39ce252918712180f5a64853920a320981dac94b (patch) | |
| tree | 276027d84b0c6b8e65c8c3917068279b08561707 /drivers/dma-buf | |
| parent | 8526e973647e1bf77dadf894a36aefd4fd1b8a3f (diff) | |
| download | linux-39ce252918712180f5a64853920a320981dac94b.tar.bz2 | |
drm: Assert held reservation lock for dma-buf mmapping
When userspace mmaps dma-buf's fd, the dma-buf reservation lock must be
held. Add locking sanity checks to the dma-buf mmaping callbacks of DRM
drivers to ensure that the locking assumptions won't regress in future.
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221110201349.351294-3-dmitry.osipenko@collabora.com
Diffstat (limited to 'drivers/dma-buf')
0 files changed, 0 insertions, 0 deletions