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 <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/intel_ringbuffer.c | 31 +++++++++++++++++--------------
1 files 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;
}
--
1.7.1
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