drm/ast: Zero is missing in detect function

The function ast_get_modes() will also return 0, when it try to get the
edid, but it also do not get the edid.

Signed-off-by: Ainux.Wang <ainux.wang@gmail.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210716015615.9150-1-ainux.wang@gmail.com

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index f5d58c3088fe14ec20c6c94c032fe56405358ccb..f32da620a1238344f7782ff1c868e3311508b820 100644 (file)
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1298,7 +1298,7 @@ static enum drm_connector_status ast_connector_detect(struct drm_connector
        int r;
 
        r = ast_get_modes(connector);
-       if (r < 0)
+       if (r <= 0)
                return connector_status_disconnected;
 
        return connector_status_connected;