5 files changed, 13 insertions, 49 deletions

diff --git a/drivers/gpu/drm/i915/gvt/debugfs.c b/drivers/gpu/drm/i915/gvt/debugfs.c
index 2fb7b73b260d..285f6011a537 100644
--- a/drivers/gpu/drm/i915/gvt/debugfs.c
+++ b/drivers/gpu/drm/i915/gvt/debugfs.c
@@ -189,36 +189,19 @@ DEFINE_SIMPLE_ATTRIBUTE(vgpu_scan_nonprivbb_fops,
 /**
  * intel_gvt_debugfs_add_vgpu - register debugfs entries for a vGPU
  * @vgpu: a vGPU
- *
- * Returns:
- * Zero on success, negative error code if failed.
  */
-int intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu)
+void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu)
 {
-	struct dentry *ent;
 	char name[16] = "";
 
 	snprintf(name, 16, "vgpu%d", vgpu->id);
 	vgpu->debugfs = debugfs_create_dir(name, vgpu->gvt->debugfs_root);
-	if (!vgpu->debugfs)
-		return -ENOMEM;
-
-	ent = debugfs_create_bool("active", 0444, vgpu->debugfs,
-				  &vgpu->active);
-	if (!ent)
-		return -ENOMEM;
-
-	ent = debugfs_create_file("mmio_diff", 0444, vgpu->debugfs,
-				  vgpu, &vgpu_mmio_diff_fops);
-	if (!ent)
-		return -ENOMEM;
 
-	ent = debugfs_create_file("scan_nonprivbb", 0644, vgpu->debugfs,
-				 vgpu, &vgpu_scan_nonprivbb_fops);
-	if (!ent)
-		return -ENOMEM;
-
-	return 0;
+	debugfs_create_bool("active", 0444, vgpu->debugfs, &vgpu->active);
+	debugfs_create_file("mmio_diff", 0444, vgpu->debugfs, vgpu,
+			    &vgpu_mmio_diff_fops);
+	debugfs_create_file("scan_nonprivbb", 0644, vgpu->debugfs, vgpu,
+			    &vgpu_scan_nonprivbb_fops);
 }
 
 /**
@@ -234,27 +217,15 @@ void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu)
 /**
  * intel_gvt_debugfs_init - register gvt debugfs root entry
  * @gvt: GVT device
- *
- * Returns:
- * zero on success, negative if failed.
  */
-int intel_gvt_debugfs_init(struct intel_gvt *gvt)
+void intel_gvt_debugfs_init(struct intel_gvt *gvt)
 {
 	struct drm_minor *minor = gvt->dev_priv->drm.primary;
-	struct dentry *ent;
 
 	gvt->debugfs_root = debugfs_create_dir("gvt", minor->debugfs_root);
-	if (!gvt->debugfs_root) {
-		gvt_err("Cannot create debugfs dir\n");
-		return -ENOMEM;
-	}
 
-	ent = debugfs_create_ulong("num_tracked_mmio", 0444, gvt->debugfs_root,
-				   &gvt->mmio.num_tracked_mmio);
-	if (!ent)
-		return -ENOMEM;
-
-	return 0;
+	debugfs_create_ulong("num_tracked_mmio", 0444, gvt->debugfs_root,
+			     &gvt->mmio.num_tracked_mmio);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index 43f4242062dd..8f37eefa0a02 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -375,9 +375,7 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv)
 	}
 	gvt->idle_vgpu = vgpu;
 
-	ret = intel_gvt_debugfs_init(gvt);
-	if (ret)
-		gvt_err("debugfs registration failed, go on.\n");
+	intel_gvt_debugfs_init(gvt);
 
 	gvt_dbg_core("gvt device initialization is done\n");
 	dev_priv->gvt = gvt;
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 7a1fe44d45af..3ff59dcf6977 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -682,9 +682,9 @@ static inline void intel_gvt_mmio_set_in_ctx(
 	gvt->mmio.mmio_attribute[offset >> 2] |= F_IN_CTX;
 }
 
-int intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu);
+void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu);
 void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu);
-int intel_gvt_debugfs_init(struct intel_gvt *gvt);
+void intel_gvt_debugfs_init(struct intel_gvt *gvt);
 void intel_gvt_debugfs_clean(struct intel_gvt *gvt);
 
 
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 9674738b89df..d91136b39dad 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1796,9 +1796,6 @@ static int kvmgt_guest_init(struct mdev_device *mdev)
 						"kvmgt_nr_cache_entries",
 						0444, vgpu->debugfs,
 						&vgpu->vdev.nr_cache_entries);
-	if (!info->debugfs_cache_entries)
-		gvt_vgpu_err("Cannot create kvmgt debugfs entry\n");
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 44ce3c2b9ac1..d5a6e4e3d0fd 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -420,9 +420,7 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
 	if (ret)
 		goto out_clean_submission;
 
-	ret = intel_gvt_debugfs_add_vgpu(vgpu);
-	if (ret)
-		goto out_clean_sched_policy;
+	intel_gvt_debugfs_add_vgpu(vgpu);
 
 	ret = intel_gvt_hypervisor_set_opregion(vgpu);
 	if (ret)