From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Thu, 15 May 2014 21:49:20 +0000 (+0100)
Subject: staging: vt6656: lock changes: s_nsBulkInUsbIoCompleteRead.
X-Git-Tag: v4.14-rc1~7083^2~39^2~867
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=29b02373f44d0d873a4f645b53c3cddce2f40f7b;p=platform%2Fkernel%2Flinux-rpi.git

staging: vt6656: lock changes: s_nsBulkInUsbIoCompleteRead.

Use spin_lock_irqsave/spin_unlock_irqrestore

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index 934d0a9..b707470 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -474,6 +474,7 @@ static void s_nsBulkInUsbIoCompleteRead(struct urb *urb)
 {
 	struct vnt_rcb *rcb = urb->context;
 	struct vnt_private *priv = rcb->pDevice;
+	unsigned long flags;
 	int re_alloc_skb = false;
 
 	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsBulkInUsbIoCompleteRead\n");
@@ -493,23 +494,23 @@ static void s_nsBulkInUsbIoCompleteRead(struct urb *urb)
 	}
 
 	if (urb->actual_length) {
-		spin_lock(&priv->lock);
+		spin_lock_irqsave(&priv->lock, flags);
 
 		if (RXbBulkInProcessData(priv, rcb, urb->actual_length) == true)
 			re_alloc_skb = true;
 
-		spin_unlock(&priv->lock);
+		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 
 	rcb->Ref--;
 	if (rcb->Ref == 0) {
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"RxvFreeNormal %d\n",
 							priv->NumRecvFreeList);
-		spin_lock(&priv->lock);
+		spin_lock_irqsave(&priv->lock, flags);
 
 		RXvFreeRCB(rcb, re_alloc_skb);
 
-		spin_unlock(&priv->lock);
+		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 
 	return;