@@ -53,22 +53,14 @@ static u32 sun8i_dw_hdmi_find_possible_crtcs(struct drm_device *drm,
struct device_node *port, *ep, *remote, *remote_port;
u32 crtcs = 0;
- port = of_graph_get_port_by_id(node, 0);
- if (!port)
- return 0;
-
- ep = of_get_next_available_child(port, NULL);
- if (!ep)
- return 0;
-
- remote = of_graph_get_remote_port_parent(ep);
+ remote = of_graph_get_remote_node(node, 0, -1);
if (!remote)
return 0;
if (sun8i_dw_hdmi_node_is_tcon_top(remote)) {
port = of_graph_get_port_by_id(remote, 4);
if (!port)
- return 0;
+ goto crtcs_exit;
for_each_child_of_node(port, ep) {
remote_port = of_graph_get_remote_port(ep);
@@ -81,6 +73,9 @@ static u32 sun8i_dw_hdmi_find_possible_crtcs(struct drm_device *drm,
crtcs = drm_of_find_possible_crtcs(drm, node);
}
+crtcs_exit:
+ of_node_put(remote);
+
return crtcs;
}
If error happens in sun8i_dw_hdmi_find_possible_crtcs(), nodes are not released with of_node_put() before returning. Fix that by calling of_node_put() when necessary. While on it, clean up the code by using of_graph_get_remote_node() which also lowers number of cases where error handling has to be performed. Fixes: 57e23de02f48 ("drm/sun4i: DW HDMI: Expand algorithm for possible crtcs") Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> --- drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-)