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author | Jerome Glisse <jglisse@redhat.com> | 2009-12-11 20:36:19 +0100 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2009-12-23 11:14:04 +1000 |
commit | 0a0c7596c643239e8d4c3eaaba43b74a96f2411e (patch) | |
tree | bb387597d7c8260a8cd2a18235cde90cc72c757d /drivers/gpu/drm/radeon | |
parent | d2efdf6d6f425950a61fa5cc3aa22e6718e7f3c8 (diff) | |
download | linux-3.10-0a0c7596c643239e8d4c3eaaba43b74a96f2411e.tar.gz linux-3.10-0a0c7596c643239e8d4c3eaaba43b74a96f2411e.tar.bz2 linux-3.10-0a0c7596c643239e8d4c3eaaba43b74a96f2411e.zip |
drm/radeon/kms: Avoid crash when trying to cleanup uninitialized structure
Add boolean to record if some part of the driver are initialized or
not this allow to avoid a crash when trying to cleanup uninitialized
structure members.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_fence.c | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 4 |
3 files changed, 13 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index cd650fd3964..53b55608102 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -162,6 +162,7 @@ struct radeon_fence_driver { struct list_head created; struct list_head emited; struct list_head signaled; + bool initialized; }; struct radeon_fence { @@ -202,8 +203,9 @@ struct radeon_surface_reg { struct radeon_mman { struct ttm_bo_global_ref bo_global_ref; struct ttm_global_reference mem_global_ref; - bool mem_global_referenced; struct ttm_bo_device bdev; + bool mem_global_referenced; + bool initialized; }; struct radeon_bo { diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c index cb4cd97ae39..4cdd8b4f754 100644 --- a/drivers/gpu/drm/radeon/radeon_fence.c +++ b/drivers/gpu/drm/radeon/radeon_fence.c @@ -324,7 +324,7 @@ int radeon_fence_driver_init(struct radeon_device *rdev) write_lock_irqsave(&rdev->fence_drv.lock, irq_flags); r = radeon_scratch_get(rdev, &rdev->fence_drv.scratch_reg); if (r) { - DRM_ERROR("Fence failed to get a scratch register."); + dev_err(rdev->dev, "fence failed to get scratch register\n"); write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags); return r; } @@ -335,9 +335,10 @@ int radeon_fence_driver_init(struct radeon_device *rdev) INIT_LIST_HEAD(&rdev->fence_drv.signaled); rdev->fence_drv.count_timeout = 0; init_waitqueue_head(&rdev->fence_drv.queue); + rdev->fence_drv.initialized = true; write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags); if (radeon_debugfs_fence_init(rdev)) { - DRM_ERROR("Failed to register debugfs file for fence !\n"); + dev_err(rdev->dev, "fence debugfs file creation failed\n"); } return 0; } @@ -346,11 +347,13 @@ void radeon_fence_driver_fini(struct radeon_device *rdev) { unsigned long irq_flags; + if (!rdev->fence_drv.initialized) + return; wake_up_all(&rdev->fence_drv.queue); write_lock_irqsave(&rdev->fence_drv.lock, irq_flags); radeon_scratch_free(rdev, rdev->fence_drv.scratch_reg); write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags); - DRM_INFO("radeon: fence finalized\n"); + rdev->fence_drv.initialized = false; } diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 7bed4122528..a00450743d6 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -494,6 +494,7 @@ int radeon_ttm_init(struct radeon_device *rdev) DRM_ERROR("failed initializing buffer object driver(%d).\n", r); return r; } + rdev->mman.initialized = true; r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM, rdev->mc.real_vram_size >> PAGE_SHIFT); if (r) { @@ -541,6 +542,8 @@ void radeon_ttm_fini(struct radeon_device *rdev) { int r; + if (!rdev->mman.initialized) + return; if (rdev->stollen_vga_memory) { r = radeon_bo_reserve(rdev->stollen_vga_memory, false); if (r == 0) { @@ -554,6 +557,7 @@ void radeon_ttm_fini(struct radeon_device *rdev) ttm_bo_device_release(&rdev->mman.bdev); radeon_gart_fini(rdev); radeon_ttm_global_fini(rdev); + rdev->mman.initialized = false; DRM_INFO("radeon: ttm finalized\n"); } |