The netdev_del command crashes when given a -net device, because it
calls qemu_opts_del(NULL).
Check that this is a -netdev before attempting to delete it and the
QemuOpts.
Note the subtle change from qemu_find_opts_err("netdev", errp) to
qemu_find_opts_err("netdev", NULL). Since "netdev" is a built in
options group and we don't check for NULL return anyway, there's no use
in passing errp here.
Signed-off-by: Stefan Hajnoczi <[email protected]>
---
net.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/net.c b/net.c
index ae4bc0d..e8ae13e 100644
--- a/net.c
+++ b/net.c
@@ -827,6 +827,7 @@ exit_err:
void qmp_netdev_del(const char *id, Error **errp)
{
NetClientState *nc;
+ QemuOpts *opts;
nc = qemu_find_netdev(id);
if (!nc) {
@@ -834,8 +835,14 @@ void qmp_netdev_del(const char *id, Error **errp)
return;
}
+ opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), id);
+ if (!opts) {
+ error_setg(errp, "Device '%s' is not a netdev", id);
+ return;
+ }
+
qemu_del_net_client(nc);
- qemu_opts_del(qemu_opts_find(qemu_find_opts_err("netdev", errp), id));
+ qemu_opts_del(opts);
}
void print_net_client(Monitor *mon, NetClientState *nc)
--
1.7.11.7
