drm/nouveau: fix pm initialization order

If nouveau_pm_perflvl_get() fails, pm->profiles list will be left
uninitialized, which causes oops during nouveau_pm_fini().

Move INIT_LIST_HEAD before call to nouveau_pm_perflvl_get().

Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c
index 3c55ec2366d3..d2f2de67f688 100644
--- a/drivers/gpu/drm/nouveau/nouveau_pm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_pm.c
@@ -916,6 +916,8 @@ nouveau_pm_init(struct drm_device *dev)
         nouveau_volt_init(dev);
         nouveau_temp_init(dev);
 
+        INIT_LIST_HEAD(&pm->profiles);
+
         /* determine current ("boot") performance level */
         ret = nouveau_pm_perflvl_get(dev, &pm->boot);
         if (ret) {
@@ -927,7 +929,6 @@ nouveau_pm_init(struct drm_device *dev)
         strncpy(pm->boot.profile.name, "boot", 4);
         pm->boot.profile.func = &nouveau_pm_static_profile_func;
 
-        INIT_LIST_HEAD(&pm->profiles);
         list_add(&pm->boot.profile.head, &pm->profiles);
 
         pm->profile_ac = &pm->boot.profile;