[Qemu-devel] [PATCH v2 3/3] 9pfs: add cleanup operation for proxy backend driver

[Li Qiang <liq3ea@gmail.com>]

In the init operation of proxy backend dirver, it allocates a
V9fsProxy struct and some other resources. We should free these
resources when the 9pfs device is unrealized. This is what this
patch does.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
---
 hw/9pfs/9p-proxy.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hw/9pfs/9p-proxy.c b/hw/9pfs/9p-proxy.c
index f2417b7..4b22f57 100644
--- a/hw/9pfs/9p-proxy.c
+++ b/hw/9pfs/9p-proxy.c
@@ -1168,9 +1168,19 @@ static int proxy_init(FsContext *ctx)
     return 0;
 }
 
+static void proxy_cleanup(FsContext *ctx)
+{
+    V9fsProxy *proxy = ctx->private;
+    close(proxy->sockfd);
+    g_free(proxy->in_iovec.iov_base);
+    g_free(proxy->out_iovec.iov_base);
+    g_free(proxy);
+}
+
 FileOperations proxy_ops = {
     .parse_opts   = proxy_parse_opts,
     .init         = proxy_init,
+    .cleanup      = proxy_cleanup,
     .lstat        = proxy_lstat,
     .readlink     = proxy_readlink,
     .close        = proxy_close,
-- 
1.8.3.1