drm/i915/gvt: fix detect_host calling logic

Like other routines, intel_gvt_hypervisor_detect_host returns 0
for success.

Signed-off-by: Xiaoguang Chen <xiaoguang.chen@intel.com>
Signed-off-by: Jike Song <jike.song@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index bf0377768a0d02dd769944d3c90e1302a67249c0..385969a8921680f71e1f57a0843f605d20538cea 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -65,6 +65,8 @@ struct intel_gvt_io_emulation_ops intel_gvt_io_emulation_ops = {
  */
 int intel_gvt_init_host(void)
 {
+       int ret;
+
        if (intel_gvt_host.initialized)
                return 0;
 
@@ -90,7 +92,8 @@ int intel_gvt_init_host(void)
                return -EINVAL;
 
        /* Try to detect if we're running in host instead of VM. */
-       if (!intel_gvt_hypervisor_detect_host())
+       ret = intel_gvt_hypervisor_detect_host();
+       if (ret)
                return -ENODEV;
 
        gvt_dbg_core("Running with hypervisor %s in host mode\n",