From: 黄涛 <huangtao@rock-chips.com>
Date: Wed, 11 Aug 2010 11:25:48 +0000 (+0800)
Subject: dwc_otg: 添加缺失的SPIN_UNLOCK，解决拔出USB时，死在__irq_usr的问题
X-Git-Tag: firefly_0821_release~11273^2~2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9649c829df1e8f09ccecedd52f2f9f875b594c5e;p=firefly-linux-kernel-4.4.55.git

dwc_otg: 添加缺失的SPIN_UNLOCK，解决拔出USB时，死在__irq_usr的问题
---

diff --git a/drivers/usb/dwc_otg/dwc_otg_pcd_intr.c b/drivers/usb/dwc_otg/dwc_otg_pcd_intr.c
index c2ec5d68ee39..9b7c83d9c116 100755
--- a/drivers/usb/dwc_otg/dwc_otg_pcd_intr.c
+++ b/drivers/usb/dwc_otg/dwc_otg_pcd_intr.c
@@ -2567,6 +2567,7 @@ int32_t dwc_otg_pcd_handle_intr( dwc_otg_pcd_t *_pcd )
 		gintr_status.d32 = dwc_otg_read_core_intr(core_if);
 		if (!gintr_status.d32) 
 		{
+			SPIN_UNLOCK(&_pcd->lock);
 			return 0;
 		}
 		DWC_DEBUGPL(DBG_PCDV, "%s: gintsts&gintmsk=%08x\n",