chardev: Get filename for new qapi backend

This patch sets the filename when the new qapi backend
init from opts.

The previous patch and discussions as link below:

http://patchwork.ozlabs.org/patch/243896/

If anyone who have better idea to fix this please let
me know your suggestions.

Signed-off-by: Lei Li <[email protected]>
Message-id: 1369132079[email protected]
Signed-off-by: Anthony Liguori <[email protected]>

diff --git a/qemu-char.c b/qemu-char.c
index f825294a9b2305016fd4e95b1aa210407698ecdc..4f8382e540f72b7f28321d33797d6cea506e08fc 100644 (file)
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3276,6 +3276,7 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
         ChardevReturn *ret = NULL;
         const char *id = qemu_opts_id(opts);
         const char *bid = NULL;
+        char *filename = g_strdup(qemu_opt_get(opts, "backend"));
 
         if (qemu_opt_get_bool(opts, "mux", 0)) {
             bid = g_strdup_printf("%s-base", id);
@@ -3308,6 +3309,7 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
         }
 
         chr = qemu_chr_find(id);
+        chr->filename = filename;
 
     qapi_out:
         qapi_free_ChardevBackend(backend);