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Merge "tmc-etr: Add ETR status check in usb_notifier"

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qctecmdr 2020-04-29 18:21:33 -07:00 • committed by Gerrit - the friendly Code Review server
commit 744e6ae9a6
1 changed files with 9 additions and 0 deletions
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9
drivers/hwtracing/coresight/coresight-tmc-etr.c
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@ -1324,6 +1324,15 @@ void usb_notifier(void *priv, unsigned int event, struct qdss_request *d_req,
int ret = 0;
mutex_lock(&drvdata->mem_lock);
if (drvdata->out_mode != TMC_ETR_OUT_MODE_USB
|| drvdata->mode == CS_MODE_DISABLED) {
dev_err(&drvdata->csdev->dev,
"%s: ETR is not USB mode, or ETR is disabled.\n", __func__);
mutex_unlock(&drvdata->mem_lock);
return;
}
if (event == USB_QDSS_CONNECT) {
ret = tmc_etr_fill_usb_bam_data(drvdata);
if (ret)