[PATCH v4 01/79] media: venus: fix PM runtime logic at venus_sys_error_handler()

[Mauro Carvalho Chehab]

The venus_sys_error_handler() assumes that pm_runtime was
able to resume, as it does things like:

	while (pm_runtime_active(core->dev_dec) || pm_runtime_active(core->dev_enc))
		msleep(10);

Well, if, for whatever reason, this won't happen, the routine
won't do what's expected. So, check for the returned error
condition, warning if it returns an error.

Fixes: af2c3834c8ca ("[media] media: venus: adding core part and helper functions")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
 drivers/media/platform/qcom/venus/core.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 54bac7ec14c5..c80c27c87ccc 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -84,7 +84,11 @@ static void venus_sys_error_handler(struct work_struct *work)
 			container_of(work, struct venus_core, work.work);
 	int ret = 0;
 
-	pm_runtime_get_sync(core->dev);
+	ret = pm_runtime_get_sync(core->dev);
+	if (WARN_ON(ret < 0)) {
+		pm_runtime_put_noidle(core->dev);
+		return;
+	}
 
 	hfi_core_deinit(core, true);
 
@@ -106,9 +110,13 @@ static void venus_sys_error_handler(struct work_struct *work)
 
 	hfi_reinit(core);
 
-	pm_runtime_get_sync(core->dev);
+	ret = pm_runtime_get_sync(core->dev);
+	if (WARN_ON(ret < 0)) {
+		pm_runtime_put_noidle(core->dev);
+		return;
+	}
 
-	ret |= venus_boot(core);
+	ret = venus_boot(core);
 	ret |= hfi_core_resume(core, true);
 
 	enable_irq(core->irq);
-- 
2.30.2