The field obejct_idr of struct drm_via_private was introduced with the commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=77ee8f3825054f23b17e9c8f728f061defd86cdc . In that patch idr_init(&dev->object_name_idr) was called instead of idr_init(&dev_priv->object_idr) by mistake, leaving the dev_priv->object_idr uninitialized. To be more exact, the object_idr buffer is filled with zeros because of kzalloc(), but the dev_priv->object_idr.lock spinlock can cause system freeze at lib/idr.c:move_to_free_list() when spin_lock_irqsave() is called on this spinlock. Signed-off-by: M?rton N?meth <nm127 at freemail.hu> Signed-off-by: James Simmons <jsimmons at infradead.org> diff --git a/drivers/gpu/drm/via/via_map.c b/drivers/gpu/drm/via/via_map.c index 1f18225..240bc49 100644 --- a/drivers/gpu/drm/via/via_map.c +++ b/drivers/gpu/drm/via/via_map.c @@ -100,12 +100,10 @@ int via_driver_load(struct drm_device *dev, unsigned long chipset) if (dev_priv == NULL) return -ENOMEM; + idr_init(&dev_priv->object_idr); dev->dev_private = (void *)dev_priv; - dev_priv->chipset = chipset; - idr_init(&dev->object_name_idr); - pci_set_master(dev->pdev); ret = drm_vblank_init(dev, 1);
