simplify the mdev interface v8

[Christoph Hellwig]

On Tue, Sep 27, 2022 at 03:54:26PM -0600, Alex Williamson wrote:
> Oops, I had to drop this, I get a null pointer from gvt-g code:

Ok, this is a stupid bug in the second patch in the series.  I did not
hit it in my mdev testing as my script just uses the first type and
thus never hits these, but as your trace showed mdevctl and once I
used that I could reproduce it.  The fix for patch 2 is below, and
the git tree at:

   git://git.infradead.org/users/hch/misc.git mvdev-lifetime

has been updated with that folded in and the recent reviews.

---
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 1b67328c714f1..b0d5dafd013f4 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -123,7 +123,7 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt)
 
 		sprintf(gvt->types[i].name, "GVTg_V%u_%s",
 			GRAPHICS_VER(gvt->gt->i915) == 8 ? 4 : 5, conf->name);
-		gvt->types->conf = conf;
+		gvt->types[i].conf = conf;
 		gvt->types[i].avail_instance = min(low_avail / conf->low_mm,
 						   high_avail / conf->high_mm);