If we update the value of i195.enable_gvt if we fail to load GVT
userspace can easily detect if when it fails to load as requested.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Zhi Wang <zhi.a.wang@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_gvt.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_gvt.c b/drivers/gpu/drm/i915/intel_gvt.c
index 9fa458c..434f4d5 100644
--- a/drivers/gpu/drm/i915/intel_gvt.c
+++ b/drivers/gpu/drm/i915/intel_gvt.c
@@ -63,7 +63,7 @@ int intel_gvt_init(struct drm_i915_private *dev_priv)
if (!is_supported_device(dev_priv)) {
DRM_DEBUG_DRIVER("Unsupported device. GVT-g is disabled\n");
- return 0;
+ goto bail;
}
/*
@@ -72,16 +72,20 @@ int intel_gvt_init(struct drm_i915_private *dev_priv)
ret = intel_gvt_init_host();
if (ret) {
DRM_DEBUG_DRIVER("Not in host or MPT modules not found\n");
- return 0;
+ goto bail;
}
ret = intel_gvt_init_device(dev_priv);
if (ret) {
DRM_DEBUG_DRIVER("Fail to init GVT device\n");
- return 0;
+ goto bail;
}
return 0;
+
+bail:
+ i915.enable_gvt = 0;
+ return 0;
}
/**
--
2.8.1
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