X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Funixctl.c;h=d75166fe424117c0a5d3703c6223a0bc1cfb3343;hb=4895c7016139e2e59c17b1d9c39aa3eca90399da;hp=7cc7e5e234a6ee4e45d79ededbf8e150c488d68a;hpb=279320b8276011df3667478de6750d5a40d0c6eb;p=openvswitch

diff --git a/lib/unixctl.c b/lib/unixctl.c
index 7cc7e5e2..d75166fe 100644
--- a/lib/unixctl.c
+++ b/lib/unixctl.c
@@ -115,9 +115,14 @@ unixctl_command_register(const char *name, const char *args,
         unixctl_cb_func *cb, void *aux)
 {
     struct unixctl_command *command;
+    struct unixctl_command *lookup = shash_find_data(&commands, name);
+
+    assert(!lookup || lookup->cb == cb);
+
+    if (lookup) {
+        return;
+    }
 
-    assert(!shash_find_data(&commands, name)
-           || shash_find_data(&commands, name) == cb);
     command = xmalloc(sizeof *command);
     command->args = args;
     command->cb = cb;