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drm: fix page_flip error handling

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Free event and restore event_space only when page_flip->flags has
DRM_MODE_PAGE_FLIP_EVENT if page_flip() is failed.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Joonyoung Shim 2012-04-18 13:47:02 +09:00 committed by Dave Airlie
parent d6b8395262
commit aef6a7eeac
1 changed files with 6 additions and 4 deletions
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2
drivers/gpu/drm/drm_crtc.c
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@ -3335,11 +3335,13 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
ret = crtc->funcs->page_flip(crtc, fb, e);
if (ret) {
if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
spin_lock_irqsave(&dev->event_lock, flags);
file_priv->event_space += sizeof e->event;
spin_unlock_irqrestore(&dev->event_lock, flags);
kfree(e);
}
}
out:
mutex_unlock(&dev->mode_config.mutex);