drm/i915/gvt: Fix check error of vgpu create failure message

zhenyw · zhenyw · commit 64c066a911b7 · 2018-03-06T13:19:25.000+08:00
Fix check error at

  CHECK   drivers/gpu/drm/i915//gvt/kvmgt.c
drivers/gpu/drm/i915//gvt/kvmgt.c:455 intel_vgpu_create() error: we previously assumed 'vgpu' could be null (see line 454)

For failed vgpu create, just show error return in failure message.

Reviewed-by: Zhi Wang &lt;zhi.a.wang@intel.com&gt;
Signed-off-by: Zhenyu Wang &lt;zhenyuw@linux.intel.com&gt;
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -452,7 +452,7 @@ static int intel_vgpu_create(struct kobject *kobj, struct mdev_device *mdev)
 	vgpu = intel_gvt_ops->vgpu_create(gvt, type);
 	if (IS_ERR_OR_NULL(vgpu)) {
 		ret = vgpu == NULL ? -EFAULT : PTR_ERR(vgpu);
-		gvt_vgpu_err("failed to create intel vgpu: %d\n", ret);
+		gvt_err("failed to create intel vgpu: %d\n", ret);
 		goto out;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -452,7 +452,7 @@ static int intel_vgpu_create(struct kobject kobj, struct mdev_device mdev)`
`452`	`452`	`vgpu = intel_gvt_ops->vgpu_create(gvt, type);`
`453`	`453`	`if (IS_ERR_OR_NULL(vgpu)) {`
`454`	`454`	`ret = vgpu == NULL ? -EFAULT : PTR_ERR(vgpu);`
`455`		`- gvt_vgpu_err("failed to create intel vgpu: %d\n", ret);`
	`455`	`+ gvt_err("failed to create intel vgpu: %d\n", ret);`
`456`	`456`	`goto out;`
`457`	`457`	`}`
`458`	`458`