[RFC PATCH V0 04/10] media: mtk-mdp3: add error handling in error return

[Moudy Ho]

From: daoyuan huang <daoyuan.huang at mediatek.com>

add error handling in missed places.

Signed-off-by: daoyuan huang <daoyuan.huang at mediatek.com>
---
 drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c | 14 +++++++++++++-
 drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c | 16 ++++++++++++++++
 drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.h |  2 ++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c b/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c
index f8bf8fde599c..42a51061677a 100644
--- a/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c
+++ b/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c
@@ -398,7 +398,17 @@ static void mdp_handle_cmdq_callback(struct cmdq_cb_data data)
 
 	cmdq_pkt_destroy(cb_param->pkt);
 	INIT_WORK(&cb_param->auto_release_work, mdp_auto_release_work);
-	queue_work(mdp->clock_wq, &cb_param->auto_release_work);
+	if (!queue_work(mdp->clock_wq, &cb_param->auto_release_work)) {
+		mdp_err("%s:queue_work fail!\n", __func__);
+		mdp_comp_clocks_off(&mdp->pdev->dev, cb_param->comps,
+				    cb_param->num_comps);
+
+		kfree(cb_param->comps);
+		kfree(cb_param);
+
+		atomic_dec(&mdp->job_count);
+		wake_up(&mdp->callback_wq);
+	}
 }
 
 int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
@@ -495,6 +505,8 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
 					   (void *)cb_param);
 		if (ret) {
 			mdp_err("%s:cmdq_pkt_flush_async fail!\n", __func__);
+			mdp_comp_clocks_off(&mdp->pdev->dev, cb_param->comps,
+					    cb_param->num_comps);
 			kfree(cb_param);
 			kfree(comps);
 		}
diff --git a/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c b/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c
index 23dd413f3423..157ef9408ed3 100644
--- a/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c
+++ b/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c
@@ -1072,6 +1072,22 @@ void mdp_comp_clock_off(struct device *dev, struct mdp_comp *comp)
 		pm_runtime_put(comp->comp_dev);
 }
 
+void mdp_comp_clocks_on(struct device *dev, struct mdp_comp *comps, int num)
+{
+	int i;
+
+	for (i = 0; i < num; i++)
+		mdp_comp_clock_on(dev, &comps[i]);
+}
+
+void mdp_comp_clocks_off(struct device *dev, struct mdp_comp *comps, int num)
+{
+	int i;
+
+	for (i = 0; i < num; i++)
+		mdp_comp_clock_off(dev, &comps[i]);
+}
+
 static int mdp_get_subsys_id(struct device *dev, struct device_node *node,
 			     struct mdp_comp *comp)
 {
diff --git a/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.h b/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.h
index 27d58dc51dce..f201bced3c06 100644
--- a/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.h
+++ b/drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.h
@@ -147,6 +147,8 @@ int mdp_component_init(struct mdp_dev *mdp);
 void mdp_component_deinit(struct mdp_dev *mdp);
 void mdp_comp_clock_on(struct device *dev, struct mdp_comp *comp);
 void mdp_comp_clock_off(struct device *dev, struct mdp_comp *comp);
+void mdp_comp_clocks_on(struct device *dev, struct mdp_comp *comps, int num);
+void mdp_comp_clocks_off(struct device *dev, struct mdp_comp *comps, int num);
 int mdp_comp_ctx_init(struct mdp_dev *mdp, struct mdp_comp_ctx *ctx,
 		      const struct img_compparam *param,
 	const struct img_ipi_frameparam *frame);
-- 
2.18.0