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drm: Warn when leaking flip events on close

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Warn when there are events on the file_priv->event_list just before
file_priv gets freed. This can occur if the driver doesn't clean up
pending page flip events in ->preclose().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2014-08-06 14:02:50 +03:00 committed by Daniel Vetter
parent eaf99c749d
commit ddde43711f
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/drm_fops.c
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@ -529,6 +529,8 @@ int drm_release(struct inode *inode, struct file *filp)
if (drm_core_check_feature(dev, DRIVER_PRIME)) if (drm_core_check_feature(dev, DRIVER_PRIME))
drm_prime_destroy_file_private(&file_priv->prime); drm_prime_destroy_file_private(&file_priv->prime);
WARN_ON(!list_empty(&file_priv->event_list));
put_pid(file_priv->pid); put_pid(file_priv->pid);
kfree(file_priv); kfree(file_priv);