Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[linux-drm-fsl-dcu.git] / drivers / net / xen-netback / interface.c

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 870f1fa583702ee4bc61d9acab3e4925a4d984e0..fff8cddfed816d3479fac57a6f91b4d827272033 100644 (file)
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -34,6 +34,7 @@
 #include <linux/ethtool.h>
 #include <linux/rtnetlink.h>
 #include <linux/if_vlan.h>
+#include <linux/vmalloc.h>
 
 #include <xen/events.h>
 #include <asm/xen/hypercall.h>
@@ -307,6 +308,15 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
        SET_NETDEV_DEV(dev, parent);
 
        vif = netdev_priv(dev);
+
+       vif->grant_copy_op = vmalloc(sizeof(struct gnttab_copy) *
+                                    MAX_GRANT_COPY_OPS);
+       if (vif->grant_copy_op == NULL) {
+               pr_warn("Could not allocate grant copy space for %s\n", name);
+               free_netdev(dev);
+               return ERR_PTR(-ENOMEM);
+       }
+
        vif->domid  = domid;
        vif->handle = handle;
        vif->can_sg = 1;
@@ -487,6 +497,7 @@ void xenvif_free(struct xenvif *vif)
 
        unregister_netdev(vif->dev);
 
+       vfree(vif->grant_copy_op);
        free_netdev(vif->dev);
 
        module_put(THIS_MODULE);