greybus: added warning message in case of missing widget

Additional warning message added to notify in case above layer tries to
access widget that is already removed from the list.

Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mark.greer@animalcreek.com>
Signed-off-by: Alex Elder <elder@linaro.org>

diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
index 1bc987449180321d2a3013be042cd8de40408c28..92f2ada60be8bd63017d1c774c84b4c661bbdd0a 100644 (file)
--- a/drivers/staging/greybus/audio_topology.c
+++ b/drivers/staging/greybus/audio_topology.c
@@ -99,6 +99,8 @@ static int gbaudio_map_widgetname(struct gbaudio_module_info *module,
                if (!strncmp(widget->name, name, NAME_SIZE))
                        return widget->id;
        }
+       dev_warn(module->dev, "%s: missing in modules widgets list\n", name);
+
        return -EINVAL;
 }