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authorPeter Maydell <peter.maydell@linaro.org>2015-01-12 11:13:24 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-01-12 11:13:24 +0000
commit7d5ad15d17f26dd4f9ff5f3491828bc34e74f28c (patch)
tree786f76c24cd9d0c20a6daf1e2a0fc6c5b72cd6cd /hw/net/xen_nic.c
parent5435f1d77eb4e8cf5e4103f64f0ecbe9f2902c71 (diff)
parenta39d97c7becca5fd679d70d17ae5b1d62b9b5da6 (diff)
downloadfocaccia-qemu-7d5ad15d17f26dd4f9ff5f3491828bc34e74f28c.tar.gz
focaccia-qemu-7d5ad15d17f26dd4f9ff5f3491828bc34e74f28c.zip
Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging
# gpg: Signature made Mon 12 Jan 2015 10:27:41 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/net-pull-request:
  hw/net/xen_nic.c: Set 'netdev->mac' to NULL after free it
  hw/net/xen_nic.c: Need free 'netdev->nic' in net_free() instead of net_disconnect()
  hw/net/xen_nic.c: Free 'netdev->txs' when map 'netdev->rxs' fails
  net: remove all cleanup methods from NIC NetClientInfos

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/net/xen_nic.c')
-rw-r--r--hw/net/xen_nic.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/hw/net/xen_nic.c b/hw/net/xen_nic.c
index 63918ae1a0..19ecfc4ccf 100644
--- a/hw/net/xen_nic.c
+++ b/hw/net/xen_nic.c
@@ -370,11 +370,16 @@ static int net_connect(struct XenDevice *xendev)
                                           netdev->xendev.dom,
                                           netdev->tx_ring_ref,
                                           PROT_READ | PROT_WRITE);
+    if (!netdev->txs) {
+        return -1;
+    }
     netdev->rxs = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
                                           netdev->xendev.dom,
                                           netdev->rx_ring_ref,
                                           PROT_READ | PROT_WRITE);
-    if (!netdev->txs || !netdev->rxs) {
+    if (!netdev->rxs) {
+        xc_gnttab_munmap(netdev->xendev.gnttabdev, netdev->txs, 1);
+        netdev->txs = NULL;
         return -1;
     }
     BACK_RING_INIT(&netdev->tx_ring, netdev->txs, XC_PAGE_SIZE);
@@ -405,10 +410,6 @@ static void net_disconnect(struct XenDevice *xendev)
         xc_gnttab_munmap(netdev->xendev.gnttabdev, netdev->rxs, 1);
         netdev->rxs = NULL;
     }
-    if (netdev->nic) {
-        qemu_del_nic(netdev->nic);
-        netdev->nic = NULL;
-    }
 }
 
 static void net_event(struct XenDevice *xendev)
@@ -422,7 +423,12 @@ static int net_free(struct XenDevice *xendev)
 {
     struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
 
+    if (netdev->nic) {
+        qemu_del_nic(netdev->nic);
+        netdev->nic = NULL;
+    }
     g_free(netdev->mac);
+    netdev->mac = NULL;
     return 0;
 }