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authorMarc-André Lureau <marcandre.lureau@redhat.com>2016-07-27 01:15:03 +0400
committerMichael S. Tsirkin <mst@redhat.com>2016-07-29 00:33:47 +0300
commitf1a0365b686c2abdfde6303947f8893873b6b00b (patch)
treee90d14cbba3a66fbfd4aef0e4111f7bec919eada /hw/net/vhost_net.c
parente0547b59dc0ead4c605d3f02d1c8829630a1311b (diff)
downloadfocaccia-qemu-f1a0365b686c2abdfde6303947f8893873b6b00b.tar.gz
focaccia-qemu-f1a0365b686c2abdfde6303947f8893873b6b00b.zip
vhost-net: always call vhost_dev_cleanup() on failure
vhost_dev_init(), calling vhost backend initialization, should be
cleaned up after failure too. Call vhost_dev_cleanup() in all failure
cases. First, it needs to zero-alloc the struct to avoid the initial
garbage.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/net/vhost_net.c')
-rw-r--r--hw/net/vhost_net.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index 3677a8297a..c11f69cdc2 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -140,7 +140,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
 {
     int r;
     bool backend_kernel = options->backend_type == VHOST_BACKEND_TYPE_KERNEL;
-    struct vhost_net *net = g_malloc(sizeof *net);
+    struct vhost_net *net = g_new0(struct vhost_net, 1);
     uint64_t features = 0;
 
     if (!options->net_backend) {
@@ -185,7 +185,6 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
             fprintf(stderr, "vhost lacks feature mask %" PRIu64
                    " for backend\n",
                    (uint64_t)(~net->dev.features & net->dev.backend_features));
-            vhost_dev_cleanup(&net->dev);
             goto fail;
         }
     }
@@ -197,7 +196,6 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
             fprintf(stderr, "vhost lacks feature mask %" PRIu64
                     " for backend\n",
                     (uint64_t)(~net->dev.features & features));
-            vhost_dev_cleanup(&net->dev);
             goto fail;
         }
     }
@@ -205,7 +203,9 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
     vhost_net_ack_features(net, features);
 
     return net;
+
 fail:
+    vhost_dev_cleanup(&net->dev);
     g_free(net);
     return NULL;
 }