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drm: Remove two leaks of vblank reference count in error paths. 

If the failing paths were hit, the vblank IRQ would never get turned off
again.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Eric Anholt 2008-10-17 11:03:53 -07:00 committed by Dave Airlie
parent 786225eb2f
commit 35ad68c181
2 changed files with 5 additions and 1 deletions
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5
drivers/gpu/drm/drm_irq.c
View File

@ -594,11 +594,14 @@ int drm_wait_vblank(struct drm_device *dev, void *data,
goto done;
}
/* Get a refcount on the vblank, which will be released by
* drm_vbl_send_signals().
*/
ret = drm_vblank_get(dev, crtc);
if (ret) {
drm_free(vbl_sig, sizeof(struct drm_vbl_sig),
DRM_MEM_DRIVER);
return ret;
goto done;
}
atomic_inc(&dev->vbl_signal_pending);

1
drivers/gpu/drm/i915/i915_irq.c
View File

@ -771,6 +771,7 @@ int i915_vblank_swap(struct drm_device *dev, void *data,
vbl_swap->plane == plane &&
vbl_swap->sequence == swap->sequence) {
spin_unlock_irqrestore(&dev_priv->swaps_lock, irqflags);
drm_vblank_put(dev, pipe);
DRM_DEBUG("Already scheduled\n");
return 0;
}