drm/i915: Cleanup after failed initialization of ringbuffers
The callers expect us to cleanup any partially initialised structures
before reporting the error.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index f84c8e9..42866c0 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4632,23 +4632,40 @@
{
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
+
dev_priv->render_ring = render_ring;
+
if (!I915_NEED_GFX_HWS(dev)) {
dev_priv->render_ring.status_page.page_addr
= dev_priv->status_page_dmah->vaddr;
memset(dev_priv->render_ring.status_page.page_addr,
0, PAGE_SIZE);
}
+
if (HAS_PIPE_CONTROL(dev)) {
ret = i915_gem_init_pipe_control(dev);
if (ret)
return ret;
}
+
ret = intel_init_ring_buffer(dev, &dev_priv->render_ring);
- if (!ret && HAS_BSD(dev)) {
+ if (ret)
+ goto cleanup_pipe_control;
+
+ if (HAS_BSD(dev)) {
dev_priv->bsd_ring = bsd_ring;
ret = intel_init_ring_buffer(dev, &dev_priv->bsd_ring);
+ if (ret)
+ goto cleanup_render_ring;
}
+
+ return 0;
+
+cleanup_render_ring:
+ intel_cleanup_ring_buffer(dev, &dev_priv->render_ring);
+cleanup_pipe_control:
+ if (HAS_PIPE_CONTROL(dev))
+ i915_gem_cleanup_pipe_control(dev);
return ret;
}