diff options
| -rw-r--r-- | drivers/gpu/drm/tegra/dc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 5a6d43dfeb8d..ef36f9d5e35e 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -814,8 +814,12 @@ static void tegra_dc_finish_page_flip(struct tegra_dc *dc) unsigned long flags, base; struct tegra_bo *bo; - if (!dc->event) + spin_lock_irqsave(&drm->event_lock, flags); + + if (!dc->event) { + spin_unlock_irqrestore(&drm->event_lock, flags); return; + } bo = tegra_fb_get_plane(crtc->primary->fb, 0); @@ -825,12 +829,12 @@ static void tegra_dc_finish_page_flip(struct tegra_dc *dc) tegra_dc_writel(dc, 0, DC_CMD_STATE_ACCESS); if (base == bo->paddr + crtc->primary->fb->offsets[0]) { - spin_lock_irqsave(&drm->event_lock, flags); drm_crtc_send_vblank_event(crtc, dc->event); drm_crtc_vblank_put(crtc); dc->event = NULL; - spin_unlock_irqrestore(&drm->event_lock, flags); } + + spin_unlock_irqrestore(&drm->event_lock, flags); } void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file) |