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authorDave Airlie <airlied@gmail.com>2013-09-09 07:30:56 +1000
committerDave Airlie <airlied@redhat.com>2013-09-10 12:38:53 +1000
commit01172772c7c973debf5b4881fcb9463891ea97ec (patch)
tree8ead82f4ea9a512130f49a13541c71b979f0e49c /drivers/gpu
parent48016851c89fcb1e9ea4daa7ace142e95f7875fe (diff)
drm/nouveau: fix oops on runtime suspend/resume
if we have no crtcs we need to not call the display resume code. Reported-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 8863644024b7..e893c5362402 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -636,7 +636,8 @@ int nouveau_pmops_resume(struct device *dev)
nouveau_fbcon_set_suspend(drm_dev, 0);
nouveau_fbcon_zfill_all(drm_dev);
- nouveau_display_resume(drm_dev);
+ if (drm_dev->mode_config.num_crtc)
+ nouveau_display_resume(drm_dev);
nv_suspend_set_printk_level(NV_DBG_DEBUG);
return 0;
}
@@ -671,7 +672,8 @@ static int nouveau_pmops_thaw(struct device *dev)
if (drm_dev->mode_config.num_crtc)
nouveau_fbcon_set_suspend(drm_dev, 0);
nouveau_fbcon_zfill_all(drm_dev);
- nouveau_display_resume(drm_dev);
+ if (drm_dev->mode_config.num_crtc)
+ nouveau_display_resume(drm_dev);
nv_suspend_set_printk_level(NV_DBG_DEBUG);
return 0;
}
@@ -906,7 +908,8 @@ static int nouveau_pmops_runtime_resume(struct device *dev)
pci_set_master(pdev);
ret = nouveau_do_resume(drm_dev);
- nouveau_display_resume(drm_dev);
+ if (drm_dev->mode_config.num_crtc)
+ nouveau_display_resume(drm_dev);
drm_kms_helper_poll_enable(drm_dev);
/* do magic */
nv_mask(device, 0x88488, (1 << 25), (1 << 25));