diff options
Diffstat (limited to 'linux-core/drm_pm.c')
| -rw-r--r-- | linux-core/drm_pm.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/linux-core/drm_pm.c b/linux-core/drm_pm.c index 1a402196..f0dc4db6 100644 --- a/linux-core/drm_pm.c +++ b/linux-core/drm_pm.c @@ -67,6 +67,7 @@ static int shutdown(struct sys_device *sysdev) return 0; } +static int sysdev_loaded = 0; static struct sysdev_class drm_sysdev_class = { set_kset_name("drm"), .resume = drm_resume, @@ -120,12 +121,17 @@ void drm_pm_takedown(drm_device_t *dev) int drm_pm_init(void) { + int rc; DRM_DEBUG("\n"); - return sysdev_class_register(&drm_sysdev_class); + + if (!(rc = sysdev_class_register(&drm_sysdev_class))) + sysdev_loaded = 1; + return rc; } void __exit drm_pm_exit(void) { DRM_DEBUG("\n"); - sysdev_class_unregister(&drm_sysdev_class); + if (sysdev_loaded) + sysdev_class_unregister(&drm_sysdev_class); } |