For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with
commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663
Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
Date: Thu Oct 15 09:36:25 2015 +0200
drm/gem: Check locking in drm_gem_object_unreference
Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
drivers/gpu/drm/tegra/drm.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index e0f827790a5e..3479c57151af 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -473,7 +473,7 @@ static int tegra_gem_mmap(struct drm_device *drm, void *data,
args->offset = drm_vma_node_offset_addr(&bo->gem.vma_node);
- drm_gem_object_unreference(gem);
+ drm_gem_object_unreference_unlocked(gem);
return 0;
}
@@ -683,7 +683,7 @@ static int tegra_gem_set_tiling(struct drm_device *drm, void *data,
bo->tiling.mode = mode;
bo->tiling.value = value;
- drm_gem_object_unreference(gem);
+ drm_gem_object_unreference_unlocked(gem);
return 0;
}
@@ -723,7 +723,7 @@ static int tegra_gem_get_tiling(struct drm_device *drm, void *data,
break;
}
- drm_gem_object_unreference(gem);
+ drm_gem_object_unreference_unlocked(gem);
return err;
}
@@ -748,7 +748,7 @@ static int tegra_gem_set_flags(struct drm_device *drm, void *data,
if (args->flags & DRM_TEGRA_GEM_BOTTOM_UP)
bo->flags |= TEGRA_BO_BOTTOM_UP;
- drm_gem_object_unreference(gem);
+ drm_gem_object_unreference_unlocked(gem);
return 0;
}
@@ -770,7 +770,7 @@ static int tegra_gem_get_flags(struct drm_device *drm, void *data,
if (bo->flags & TEGRA_BO_BOTTOM_UP)
args->flags |= DRM_TEGRA_GEM_BOTTOM_UP;
- drm_gem_object_unreference(gem);
+ drm_gem_object_unreference_unlocked(gem);
return 0;
}
--
2.5.1
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