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| author | YoungJun Cho <yj44.cho@samsung.com> | 2013-06-27 08:39:58 +0900 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2014-10-15 20:05:15 +0900 |
| commit | 9832709c7a9968f213d321e0798a2039237c44f2 (patch) | |
| tree | 3c31e925002a8a58ec13b72450e87b334c7ea5a3 /drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | |
| parent | 02a1c058be67fb93b7ae5ff8eab0b84f0f076919 (diff) | |
| download | linux-3.10-9832709c7a9968f213d321e0798a2039237c44f2.tar.gz linux-3.10-9832709c7a9968f213d321e0798a2039237c44f2.tar.bz2 linux-3.10-9832709c7a9968f213d321e0798a2039237c44f2.zip | |
drm/gem: add mutex lock when using drm_gem_mmap_obj
The drm_gem_mmap_obj() has to be protected with dev->struct_mutex,
but some caller functions do not. So it adds mutex lock to missing
callers and adds assertion to check whether drm_gem_mmap_obj() is
called with mutex lock or not.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Conflicts:
drivers/gpu/drm/drm_gem_cma_helper.c
drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
Change-Id: Icb683c218b3455f113c073c33166faab5a7fcc4c
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c index be7cd97a0db..6d5ae6b5d2b 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c +++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c @@ -144,6 +144,7 @@ static int omap_gem_dmabuf_mmap(struct dma_buf *buffer, struct vm_area_struct *vma) { struct drm_gem_object *obj = buffer->priv; + struct drm_device *dev = obj->dev; int ret = 0; if (WARN_ON(!obj->filp)) |