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drm/nvd9/disp: bail out of mode_set_base if no fb bound to crtc
author
Ben Skeggs
<bskeggs@redhat.com>
Thu, 25 Aug 2011 23:40:39 +0000
(09:40 +1000)
committer
Ben Skeggs
<bskeggs@redhat.com>
Tue, 20 Sep 2011 06:12:11 +0000
(16:12 +1000)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nvd0_display.c
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diff --git
a/drivers/gpu/drm/nouveau/nvd0_display.c
b/drivers/gpu/drm/nouveau/nvd0_display.c
index 20072fb784a50051cc34babb74ad597516f3c458..23d63b4b3d77078ce4a351f82b8d7cba16d280b7 100644
(file)
--- a/
drivers/gpu/drm/nouveau/nvd0_display.c
+++ b/
drivers/gpu/drm/nouveau/nvd0_display.c
@@
-391,6
+391,11
@@
nvd0_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
int ret;
+ if (!crtc->fb) {
+ NV_DEBUG_KMS(crtc->dev, "No FB bound\n");
+ return 0;
+ }
+
ret = nvd0_crtc_swap_fbs(crtc, old_fb);
if (ret)
return ret;