diff options
| author | Kevin Hilman <khilman@linaro.org> | 2014-01-21 16:55:05 -0800 |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2014-01-21 16:55:17 -0800 |
| commit | 935b0d622f16538d071af823388c21c2e6f66134 (patch) | |
| tree | e076fb718a68241d21a73bb338c8e97175187a7e /drivers/net/xen-netback/interface.c | |
| parent | 310c85476d5047f5ace4d1c527e1bbbc0c7ad672 (diff) | |
| parent | 30d831156b3a7f249c08cbe457a0d728160db39b (diff) | |
Merge tag 'bcm-for-3.14-dt' of git://github.com/broadcom/bcm11351 into next/dt
From Christian Daudt:
Add i2c, usb and clock DT configuration to bcm mobile.
* tag 'bcm-for-3.14-dt' of git://github.com/broadcom/bcm11351: (697 commits)
clk: bcm281xx: define kona clock binding
ARM: dts: add usb udc support to bcm281xx
ARM: dts: Specify clocks for timer on bcm11351
Documentation: dt: kona-timer: Add clocks property
ARM: dts: Specify clocks for SDHCIs on bcm11351
Documentation: dt: kona-sdhci: Add clocks property
ARM: dts: Specify clocks for UARTs on bcm11351
ARM: dts: bcm281xx: Add i2c busses
ARM: dts: Declare clocks as fixed on bcm11351
ARM: dts: bcm28155-ap: Enable all the i2c busses
+Linux 3.13-rc5
...
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
| -rw-r--r-- | drivers/net/xen-netback/interface.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 2329cccf1fa6..870f1fa58370 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -368,11 +368,11 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref, unsigned long rx_ring_ref, unsigned int tx_evtchn, unsigned int rx_evtchn) { + struct task_struct *task; int err = -ENOMEM; - /* Already connected through? */ - if (vif->tx_irq) - return 0; + BUG_ON(vif->tx_irq); + BUG_ON(vif->task); err = xenvif_map_frontend_rings(vif, tx_ring_ref, rx_ring_ref); if (err < 0) @@ -411,14 +411,16 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref, } init_waitqueue_head(&vif->wq); - vif->task = kthread_create(xenvif_kthread, - (void *)vif, "%s", vif->dev->name); - if (IS_ERR(vif->task)) { + task = kthread_create(xenvif_kthread, + (void *)vif, "%s", vif->dev->name); + if (IS_ERR(task)) { pr_warn("Could not allocate kthread for %s\n", vif->dev->name); - err = PTR_ERR(vif->task); + err = PTR_ERR(task); goto err_rx_unbind; } + vif->task = task; + rtnl_lock(); if (!vif->can_sg && vif->dev->mtu > ETH_DATA_LEN) dev_set_mtu(vif->dev, ETH_DATA_LEN); @@ -461,8 +463,10 @@ void xenvif_disconnect(struct xenvif *vif) if (netif_carrier_ok(vif->dev)) xenvif_carrier_off(vif); - if (vif->task) + if (vif->task) { kthread_stop(vif->task); + vif->task = NULL; + } if (vif->tx_irq) { if (vif->tx_irq == vif->rx_irq) |