diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-12 18:24:47 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-12 18:24:47 -0800 |
| commit | f6d07dfcb15aad199d7351d3122eabd506968daf (patch) | |
| tree | 7f76fb2b9c2d1966ed0bac068fead768eba3c56e /drivers/gpu/drm/drm_irq.c | |
| parent | 0e976064256523ca604bd82048ae0e3402ce2467 (diff) | |
| parent | 5bad7d29a7bcffb2dbc28ea2728eeb3af13784f2 (diff) | |
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"One urgent fix for an oops under console lock in some drivers, one
uapi fix, and one revert to fix rockchip regression"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
Revert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()"
drm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() wasn't called
drm: Use userspace compatible type in fourcc_mod_code macro
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index eba6337f5860..2151ea551d3b 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -616,10 +616,18 @@ int drm_control(struct drm_device *dev, void *data, void drm_calc_timestamping_constants(struct drm_crtc *crtc, const struct drm_display_mode *mode) { - struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)]; + struct drm_device *dev = crtc->dev; + unsigned int pipe = drm_crtc_index(crtc); + struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; int linedur_ns = 0, framedur_ns = 0; int dotclock = mode->crtc_clock; + if (!dev->num_crtcs) + return; + + if (WARN_ON(pipe >= dev->num_crtcs)) + return; + /* Valid dotclock? */ if (dotclock > 0) { int frame_size = mode->crtc_htotal * mode->crtc_vtotal; |