From 4856d5b443b059ff5308f79ea168d2bbacb0a885 Mon Sep 17 00:00:00 2001
From: Veera Vegivada <quic_vvegivad@quicinc.com>
Date: Thu, 28 Apr 2022 12:14:51 +0530
Subject: [PATCH] clk: qcom: clk-debug: Fix accessing mux when it is NULL

When debugcc did not register, measure/mux will be NULL.
Avoid accessing it.

Change-Id: I037151e258ae85c89c9db87254e5b8ea850157a0
Signed-off-by: Veera Vegivada <quic_vvegivad@quicinc.com>
---
 drivers/clk/qcom/clk-debug.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clk/qcom/clk-debug.c b/drivers/clk/qcom/clk-debug.c
index ffb36a69d973..a0e73fc1a057 100644
--- a/drivers/clk/qcom/clk-debug.c
+++ b/drivers/clk/qcom/clk-debug.c
@@ -445,6 +445,9 @@ static int clk_debug_measure_get(void *data, u64 *val)
 	int ret = 0;
 	u32 regval;
 
+	if (!measure)
+		return -EINVAL;
+
 	ret = clk_runtime_get_debug_mux(meas);
 	if (ret)
 		return ret;