[PATCH] media: venus: core: Fix runtime PM imbalance in venus_probe

[Dinghao Liu]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced. For other error
paths after this call, things are the same.

Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
---
 drivers/media/platform/qcom/venus/core.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c 
b/drivers/media/platform/qcom/venus/core.c
index 194b10b98767..37db3b594dca 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -289,18 +289,24 @@ static int venus_probe(struct platform_device *pdev)
                goto err_core_deinit;
 
        ret = pm_runtime_put_sync(dev);
-       if (ret)
-               goto err_dev_unregister;
+       if (ret) {
+               v4l2_device_unregister(&core->v4l2_dev);
+               hfi_core_deinit(core, false);
+               venus_shutdown(core);
+               pm_runtime_set_suspended(dev);
+               pm_runtime_disable(dev);
+               hfi_destroy(core);
+               return ret;
+       }
 
        return 0;
 
-err_dev_unregister:
-       v4l2_device_unregister(&core->v4l2_dev);
 err_core_deinit:
        hfi_core_deinit(core, false);
 err_venus_shutdown:
        venus_shutdown(core);
 err_runtime_disable:
+       pm_runtime_put_noidle(dev);
        pm_runtime_set_suspended(dev);
        pm_runtime_disable(dev);
        hfi_destroy(core);
-- 
2.17.1