diff options
| author | Rob Clark <robdclark@chromium.org> | 2022-05-31 13:08:56 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2022-06-01 17:20:08 -0700 |
| commit | 036d20726c30267724416e966c9f92db07de8081 (patch) | |
| tree | 67f575a67d56393d416aeb208129a956e1266428 /drivers/gpu/drm/msm/msm_drv.c | |
| parent | af0f2a8cc3977e08e79a096f0c2c7a5be29b130b (diff) | |
| download | linux-036d20726c30267724416e966c9f92db07de8081.tar.gz | |
drm/msm: Ensure mmap offset is initialized
If a GEM object is allocated, and then exported as a dma-buf fd which is
mmap'd before or without the GEM buffer being directly mmap'd, the
vma_node could be unitialized. This leads to a situation where the CPU
mapping is not correctly torn down in drm_vma_node_unmap().
Fixes: e5516553999f ("drm: call drm_gem_object_funcs.mmap with fake offset")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220531200857.136547-1-robdclark@gmail.com
Diffstat (limited to 'drivers/gpu/drm/msm/msm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 44485363f37a..14ab9a627d8b 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -964,7 +964,7 @@ static const struct drm_driver msm_driver = { .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import_sg_table = msm_gem_prime_import_sg_table, - .gem_prime_mmap = drm_gem_prime_mmap, + .gem_prime_mmap = msm_gem_prime_mmap, #ifdef CONFIG_DEBUG_FS .debugfs_init = msm_debugfs_init, #endif |