From: David Vrabel Date: Thu, 21 Nov 2013 15:26:09 +0000 (+0000) Subject: xen-netback: stop the VIF thread before unbinding IRQs X-Git-Tag: v3.13-rc1~7^2~4 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=db739ef37f07a1a12e388dbaec225d9d9d5d6ded;p=karo-tx-linux.git xen-netback: stop the VIF thread before unbinding IRQs If the VIF thread is still running after unbinding the Tx and Rx IRQs in xenvif_disconnect(), the thread may attempt to raise an event which will BUG (as the irq is unbound). Signed-off-by: David Vrabel Acked-by: Wei Liu Signed-off-by: David S. Miller --- diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index b78ee10a956a..2329cccf1fa6 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -461,6 +461,9 @@ void xenvif_disconnect(struct xenvif *vif) if (netif_carrier_ok(vif->dev)) xenvif_carrier_off(vif); + if (vif->task) + kthread_stop(vif->task); + if (vif->tx_irq) { if (vif->tx_irq == vif->rx_irq) unbind_from_irqhandler(vif->tx_irq, vif); @@ -471,9 +474,6 @@ void xenvif_disconnect(struct xenvif *vif) vif->tx_irq = 0; } - if (vif->task) - kthread_stop(vif->task); - xenvif_unmap_frontend_rings(vif); }