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| author | Boris Brezillon <boris.brezillon@collabora.com> | 2023-07-24 13:26:10 +0200 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@collabora.com> | 2023-08-10 08:29:14 +0200 |
| commit | 07dd476f6116966cb2006e25fdcf48f0715115ff (patch) | |
| tree | 2b366fbbb7e26ff19e5d055abcdc639e35177a99 /Documentation/hwmon | |
| parent | drm/rockchip: Don't spam logs in atomic check (diff) | |
| download | linux-07dd476f6116966cb2006e25fdcf48f0715115ff.tar.xz linux-07dd476f6116966cb2006e25fdcf48f0715115ff.zip | |
drm/shmem-helper: Reset vma->vm_ops before calling dma_buf_mmap()
The dma-buf backend is supposed to provide its own vm_ops, but some
implementation just have nothing special to do and leave vm_ops
untouched, probably expecting this field to be zero initialized (this
is the case with the system_heap implementation for instance).
Let's reset vma->vm_ops to NULL to keep things working with these
implementations.
Fixes: 26d3ac3cb04d ("drm/shmem-helpers: Redirect mmap for imported dma-buf")
Cc: <stable@vger.kernel.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reported-by: Roman Stratiienko <r.stratiienko@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Roman Stratiienko <r.stratiienko@gmail.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230724112610.60974-1-boris.brezillon@collabora.com
Diffstat (limited to 'Documentation/hwmon')
0 files changed, 0 insertions, 0 deletions