From dd785e35cb3c430c2290d351e67715864f7e5db5 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 7 Aug 2010 11:01:34 +0100 Subject: [PATCH] drm/i915/ringbuffer: Set ring->gem_buffer = NULL on init unwind The cleanup path for early abort failed to nullify the gem_buffer. The likely consequence of this is zero, since a failure here should mean aborting the module load. Signed-off-by: Chris Wilson Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_ringbuffer.c | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 3a02425..7823b96 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -608,9 +608,10 @@ err: int intel_init_ring_buffer(struct drm_device *dev, struct intel_ring_buffer *ring) { - int ret; struct drm_i915_gem_object *obj_priv; struct drm_gem_object *obj; + int ret; + ring->dev = dev; if (I915_NEED_GFX_HWS(dev)) { @@ -623,16 +624,14 @@ int intel_init_ring_buffer(struct drm_device *dev, if (obj == NULL) { DRM_ERROR("Failed to allocate ringbuffer\n"); ret = -ENOMEM; - goto cleanup; + goto err_hws; } ring->gem_object = obj; ret = i915_gem_object_pin(obj, ring->alignment); - if (ret != 0) { - drm_gem_object_unreference(obj); - goto cleanup; - } + if (ret) + goto err_unref; obj_priv = to_intel_bo(obj); ring->map.size = ring->size; @@ -644,18 +643,14 @@ int intel_init_ring_buffer(struct drm_device *dev, drm_core_ioremap_wc(&ring->map, dev); if (ring->map.handle == NULL) { DRM_ERROR("Failed to map ringbuffer.\n"); - i915_gem_object_unpin(obj); - drm_gem_object_unreference(obj); ret = -EINVAL; - goto cleanup; + goto err_unpin; } ring->virtual_start = ring->map.handle; ret = ring->init(dev, ring); - if (ret != 0) { - intel_cleanup_ring_buffer(dev, ring); - return ret; - } + if (ret) + goto err_unmap; if (!drm_core_check_feature(dev, DRIVER_MODESET)) i915_kernel_lost_context(dev); @@ -669,7 +664,15 @@ int intel_init_ring_buffer(struct drm_device *dev, INIT_LIST_HEAD(&ring->active_list); INIT_LIST_HEAD(&ring->request_list); return ret; -cleanup: + +err_unmap: + drm_core_ioremapfree(&ring->map, dev); +err_unpin: + i915_gem_object_unpin(obj); +err_unref: + drm_gem_object_unreference(obj); + ring->gem_object = NULL; +err_hws: cleanup_status_page(dev, ring); return ret; } -- 2.7.4