From: Daeyeong Lee <daeyeong.lee@samsung.com>
Date: Mon, 15 Oct 2018 06:36:06 +0000 (+0900)
Subject: [RAMEN9610-9418][COMMON] sched: ems: Modify get_cpu_max_capacity not to access NULL... 
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ddf027e210882023131ca7f5f290bfcafca68188;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[RAMEN9610-9418][COMMON] sched: ems: Modify get_cpu_max_capacity not to access NULL point

Change-Id: I2a88779e24ba4f30d0423224d3cdc78aea6e586a
Signed-off-by: Daeyeong Lee <daeyeong.lee@samsung.com>
---

diff --git a/kernel/sched/ems/energy.c b/kernel/sched/ems/energy.c
index a609b611bdf1..bb0bf5bc53d4 100644
--- a/kernel/sched/ems/energy.c
+++ b/kernel/sched/ems/energy.c
@@ -45,6 +45,10 @@ unsigned int get_cpu_max_capacity(unsigned int cpu)
 {
 	struct energy_table *table = &per_cpu(energy_table, cpu);
 
+	/* If energy table wasn't initialized, return 0 as capacity */
+	if (!table->states)
+		return 0;
+
 	return table->states[table->nr_states - 1].cap;
 }