From: 黄涛 <huangtao@rock-chips.com>
Date: Fri, 13 Aug 2010 06:08:50 +0000 (+0800)
Subject: dma: 调用spin_lock_init，正确初始化dma的lock
X-Git-Tag: firefly_0821_release~11269
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b1c6d7270ea3d005beb3200475d36b9f8cb16ddd;p=firefly-linux-kernel-4.4.55.git

dma: 调用spin_lock_init，正确初始化dma的lock
---

diff --git a/arch/arm/mach-rk2818/dma.c b/arch/arm/mach-rk2818/dma.c
index d9cdde936a0b..81b945c03c4c 100644
--- a/arch/arm/mach-rk2818/dma.c
+++ b/arch/arm/mach-rk2818/dma.c
@@ -726,6 +726,7 @@ static int __init rk28_dma_init(void)
         rk2818_dma[i].residue = 0;
         rk2818_dma[i].length = 0;
         rk2818_dma[i].tasklet_flag = 0;
+		spin_lock_init(&rk2818_dma[i].lock);
 	}
     	
 	/* clear all interrupts */