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authorBen Skeggs <bskeggs@redhat.com>2012-03-07 14:18:49 +1000
committerBen Skeggs <bskeggs@redhat.com>2012-03-13 17:15:02 +1000
commitc11dd0da5277596d0ccdccb745b273d69a94f2d7 (patch)
tree6d70b7ca4c4d0f896cc7a1c4c3271f8594b33175 /drivers/gpu/drm/nouveau
parent4489b9835a0867617a9ec29cc978a9c2c9eca363 (diff)
drm/nouveau/pm: fix oops if chipset has no pm support at all
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_pm.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c
index dcc16927716f..34d591b7d4ef 100644
--- a/drivers/gpu/drm/nouveau/nouveau_pm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_pm.c
@@ -284,9 +284,11 @@ nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
memset(perflvl, 0, sizeof(*perflvl));
- ret = pm->clocks_get(dev, perflvl);
- if (ret)
- return ret;
+ if (pm->clocks_get) {
+ ret = pm->clocks_get(dev, perflvl);
+ if (ret)
+ return ret;
+ }
if (pm->voltage.supported && pm->voltage_get) {
ret = pm->voltage_get(dev);