[PATCH 28/50] USBNET: kaweth: spin_lock in complete() cleanup
From: Ming Lei <hidden>
Date: 2013-07-11 09:10:22
Also in:
alsa-devel, linux-media, linux-wireless, netdev
Subsystem:
networking drivers, the rest, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Signed-off-by: Ming Lei <redacted> --- drivers/net/usb/kaweth.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index afb117c..4addbbf 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c@@ -598,6 +598,7 @@ static void kaweth_usb_receive(struct urb *urb) struct kaweth_device *kaweth = urb->context; struct net_device *net = kaweth->net; int status = urb->status; + unsigned long flags; int count = urb->actual_length; int count2 = urb->transfer_buffer_length;
@@ -630,12 +631,12 @@ static void kaweth_usb_receive(struct urb *urb) kaweth->stats.rx_errors++; dev_dbg(dev, "Status was -EOVERFLOW.\n"); } - spin_lock(&kaweth->device_lock); + spin_lock_irqsave(&kaweth->device_lock, flags); if (IS_BLOCKED(kaweth->status)) { - spin_unlock(&kaweth->device_lock); + spin_unlock_irqrestore(&kaweth->device_lock, flags); return; } - spin_unlock(&kaweth->device_lock); + spin_unlock_irqrestore(&kaweth->device_lock, flags); if(status && status != -EREMOTEIO && count != 1) { dev_err(&kaweth->intf->dev,
--
1.7.9.5
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