netdev - [PATCH 48/50] staging: bcm: spin

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Date:	Thu, 11 Jul 2013 17:06:11 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-usb@...r.kernel.org, Oliver Neukum <oliver@...kum.org>,
	Alan Stern <stern@...land.harvard.edu>,
	linux-input@...r.kernel.org, linux-bluetooth@...r.kernel.org,
	netdev@...r.kernel.org, linux-wireless@...r.kernel.org,
	linux-media@...r.kernel.org, alsa-devel@...a-project.org,
	Ming Lei <ming.lei@...onical.com>, devel@...verdev.osuosl.org
Subject: [PATCH 48/50] staging: bcm: spin_lock in complete() cleanup

Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().

Cc: devel@...verdev.osuosl.org
Signed-off-by: Ming Lei <ming.lei@...onical.com>
---
 drivers/staging/bcm/InterfaceRx.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/bcm/InterfaceRx.c b/drivers/staging/bcm/InterfaceRx.c
index 26f5bc7..00af901 100644
--- a/drivers/staging/bcm/InterfaceRx.c
+++ b/drivers/staging/bcm/InterfaceRx.c
@@ -47,6 +47,7 @@ static void read_bulk_callback(struct urb *urb)
 	struct bcm_interface_adapter *psIntfAdapter = pRcb->psIntfAdapter;
 	struct bcm_mini_adapter *Adapter = psIntfAdapter->psAdapter;
 	struct bcm_leader *pLeader = urb->transfer_buffer;
+	unsigned long flags;
 
 	if (unlikely(netif_msg_rx_status(Adapter)))
 		pr_info(PFX "%s: rx urb status %d length %d\n",
@@ -129,9 +130,9 @@ static void read_bulk_callback(struct urb *urb)
 			(sizeof(struct bcm_leader)), pLeader->PLength);
 		skb->len = pLeader->PLength + sizeof(USHORT);
 
-		spin_lock(&Adapter->control_queue_lock);
+		spin_lock_irqsave(&Adapter->control_queue_lock, flags);
 		ENQUEUEPACKET(Adapter->RxControlHead,Adapter->RxControlTail,skb);
-		spin_unlock(&Adapter->control_queue_lock);
+		spin_unlock_irqretore(&Adapter->control_queue_lock, flags);
 
 		atomic_inc(&Adapter->cntrlpktCnt);
 		wake_up(&Adapter->process_rx_cntrlpkt);
-- 
1.7.9.5

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