drm/i915: Skip stolen region initialisation if none is reserved

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / i915_gem_stolen.c

diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 9969d10b80f518c6d032d45ff57cf2839afbd5bf..e15a1d90037d7709b2f4c489074ef5779ac6c1a8 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -201,6 +201,9 @@ int i915_gem_init_stolen(struct drm_device *dev)
        struct drm_i915_private *dev_priv = dev->dev_private;
        int bios_reserved = 0;
 
+       if (dev_priv->gtt.stolen_size == 0)
+               return 0;
+
        dev_priv->mm.stolen_base = i915_stolen_to_physical(dev);
        if (dev_priv->mm.stolen_base == 0)
                return 0;