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 d9cdde936a0bb0b21a0af9d4327b32759ab2f1ee..81b945c03c4c0995d67aa57481c35090b2af3266 100644 (file)
--- 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 */