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drm/nvd9/disp: bail out of mode_set_base if no fb bound to crtc 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-08-26 09:40:39 +10:00
parent c20ab3e1cb
commit 84e2ad8b7b
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/nouveau/nvd0_display.c
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@ -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;