From: xxm <xxm@rock-chips.com>
Date: Fri, 11 Apr 2014 01:48:12 +0000 (+0800)
Subject: gpu midgard : fix oops if someone set freq in dts
X-Git-Tag: firefly_0821_release~5574
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6b0bce2160f43aaa4eccbb17df2aa0139e79d4e2;p=firefly-linux-kernel-4.4.55.git

gpu midgard : fix oops if someone set freq in dts
---

diff --git a/drivers/gpu/arm/midgard/platform/rk/mali_kbase_dvfs.c b/drivers/gpu/arm/midgard/platform/rk/mali_kbase_dvfs.c
index 47e13fa13155..0a657b3c5e97 100755
--- a/drivers/gpu/arm/midgard/platform/rk/mali_kbase_dvfs.c
+++ b/drivers/gpu/arm/midgard/platform/rk/mali_kbase_dvfs.c
@@ -101,7 +101,7 @@ static void mali_dvfs_event_proc(struct work_struct *w)
 	platform = (struct rk_context *)dvfs_status->kbdev->platform_context;
 	
 	spin_lock_irqsave(&mali_dvfs_spinlock, flags);
-	if (dvfs_status->utilisation > mali_dvfs_infotbl[dvfs_status->step].max_threshold) 
+	if ((dvfs_status->utilisation > mali_dvfs_infotbl[dvfs_status->step].max_threshold) && (dvfs_status->step < MALI_DVFS_STEP-1)) 
 	{
 	#if 0
 		if (dvfs_status->step==kbase_platform_dvfs_get_level(450))