driver:soc:llcc_perfmon: Configure filter if events not configured



Don't allow configure filter using SYSFS if events configured already.

Change-Id: I1ffdc99e325b3428a5c402c8229e693d4a08d39b
Signed-off-by: Avinash Philip <avinashp@codeaurora.org>

parent 1f668377

drivers/soc/qcom/llcc_perfmon.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -398,6 +398,11 @@ static ssize_t perfmon_filter_config_store(struct device *dev,
		char token, delim = DELIM_CHAR;
		enum filter_type filter = UNKNOWN;

		if (llcc_priv->configured_counters) {
		pr_err("remove configured events and try\n");
		return count;
		}

		mutex_lock(&llcc_priv->mutex);

		token = strsep((char **)&buf, delim);