diff options
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 7998ee66b317..a263b7070fc6 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -36,6 +36,7 @@ #include "drmP.h" #include <linux/interrupt.h> /* For task queue support */ +#include <linux/slab.h> #include <linux/vgaarb.h> /** @@ -115,6 +116,7 @@ void drm_vblank_cleanup(struct drm_device *dev) dev->num_crtcs = 0; } +EXPORT_SYMBOL(drm_vblank_cleanup); int drm_vblank_init(struct drm_device *dev, int num_crtcs) { @@ -163,7 +165,6 @@ int drm_vblank_init(struct drm_device *dev, int num_crtcs) } dev->vblank_disable_allowed = 0; - return 0; err: @@ -475,6 +476,7 @@ void drm_vblank_off(struct drm_device *dev, int crtc) unsigned long irqflags; spin_lock_irqsave(&dev->vbl_lock, irqflags); + dev->driver->disable_vblank(dev, crtc); DRM_WAKEUP(&dev->vbl_queue[crtc]); dev->vblank_enabled[crtc] = 0; dev->last_vblank[crtc] = dev->driver->get_vblank_counter(dev, crtc); @@ -493,6 +495,9 @@ EXPORT_SYMBOL(drm_vblank_off); */ void drm_vblank_pre_modeset(struct drm_device *dev, int crtc) { + /* vblank is not initialized (IRQ not installed ?) */ + if (!dev->num_crtcs) + return; /* * To avoid all the problems that might happen if interrupts * were enabled/disabled around or between these calls, we just |