media: stm32-dcmi: fix error messages

Revisit and add some error messages.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index 098431d..693415c 100644 (file)
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -1611,7 +1611,7 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi)
        /* Parse the graph to extract a list of subdevice DT nodes. */
        ret = dcmi_graph_parse(dcmi, dcmi->dev->of_node);
        if (ret < 0) {
-               dev_err(dcmi->dev, "Graph parsing failed\n");
+               dev_err(dcmi->dev, "Failed to parse graph\n");
                return ret;
        }
 
@@ -1620,6 +1620,7 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi)
        ret = v4l2_async_notifier_add_subdev(&dcmi->notifier,
                                             &dcmi->entity.asd);
        if (ret) {
+               dev_err(dcmi->dev, "Failed to add subdev notifier\n");
                of_node_put(dcmi->entity.node);
                return ret;
        }
@@ -1628,7 +1629,7 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi)
 
        ret = v4l2_async_notifier_register(&dcmi->v4l2_dev, &dcmi->notifier);
        if (ret < 0) {
-               dev_err(dcmi->dev, "Notifier registration failed\n");
+               dev_err(dcmi->dev, "Failed to register notifier\n");
                v4l2_async_notifier_cleanup(&dcmi->notifier);
                return ret;
        }