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staging/vboxvideo: Refactor vbox_update_mode_hints

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Refactor vbox_update_mode_hints to no longer use the obsolete
drm_modeset_lock_all() and switch it over to drm_connector_list_iter
instead of directly accessing the list using list_for_each_entry.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190304164724.10210-3-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2019-03-04 17:47:23 +01:00
parent dcf7000bef
commit e5361b4b2b
1 changed files with 7 additions and 8 deletions
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15
drivers/staging/vboxvideo/vbox_irq.c
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@ -105,6 +105,7 @@ static void validate_or_set_position_hints(struct vbox_private *vbox)
/* Query the host for the most recent video mode hints. */
static void vbox_update_mode_hints(struct vbox_private *vbox)
{
struct drm_connector_list_iter conn_iter;
struct drm_device *dev = &vbox->ddev;
struct drm_connector *connector;
struct vbox_connector *vbox_conn;
@ -122,13 +123,10 @@ static void vbox_update_mode_hints(struct vbox_private *vbox)
}
validate_or_set_position_hints(vbox);
drm_modeset_lock_all(dev);
/*
* FIXME: this needs to use drm_connector_list_iter and some real
* locking for the actual data it changes, not the deprecated
* drm_modeset_lock_all() shotgun approach.
*/
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
vbox_conn = to_vbox_connector(connector);
hints = &vbox->last_mode_hints[vbox_conn->vbox_crtc->crtc_id];
@ -157,7 +155,8 @@ static void vbox_update_mode_hints(struct vbox_private *vbox)
vbox_conn->vbox_crtc->disconnected = disconnected;
}
drm_modeset_unlock_all(dev);
drm_connector_list_iter_end(&conn_iter);
drm_modeset_unlock(&dev->mode_config.connection_mutex);
}
static void vbox_hotplug_worker(struct work_struct *work)