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Commit ba4a167f authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "slim-msm-ngd: Prevent race condition for suspend and SSR"

parents cf526004 0455a225

drivers/slimbus/slim-msm-ngd.c

+12 −1
Original line number Diff line number Diff line
@@ -2111,7 +2111,18 @@ static int ngd_slim_runtime_suspend(struct device *device) 
	int ret = 0;



	mutex_lock(&dev->tx_lock);

	if (dev->qmi.handle != NULL) {

		ret = ngd_slim_power_down(dev);

	} else {

		if (dev->state == MSM_CTRL_DOWN)

			SLIM_INFO(dev, "SB rt suspend in SSR: %d\n",

								dev->state);

		else

			SLIM_INFO(dev, "SB rt suspend bad state: %d\n",

								dev->state);

		mutex_unlock(&dev->tx_lock);

		return ret;

	}

	if (ret && ret != -EBUSY)

		SLIM_INFO(dev, "slim resource not idle:%d\n", ret);

	if (!ret || ret == -ETIMEDOUT)