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path: root/drivers/net/xen-netback/interface.c
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Diffstat (limited to 'drivers/net/xen-netback/interface.c')
-rw-r--r--drivers/net/xen-netback/interface.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 1dcb9606e6e0..b9de31ea7fc4 100644
--- 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;
@@ -488,6 +498,7 @@ void xenvif_free(struct xenvif *vif)
unregister_netdev(vif->dev);
+ vfree(vif->grant_copy_op);
free_netdev(vif->dev);
module_put(THIS_MODULE);
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