[Qemu-devel] [PATCH 1/2] hmp: Fix definition of command quit

[Markus Armbruster <armbru@redhat.com>]

The command handler is a union of two function types.  If
cmd->user_print is set, handle_user_command() calls
cmd->mhandler.cmd_new(), else cmd->mhandler.cmd().

Command definitions must therefore either set both user_print() and
mhandler.cmd_new(), or only mhandler.cmd().

quit's sets user_print and mhandler.cmd().  handle_user_command()
calls hmp_quit() through mhandler.cmd_new() rather than
mhandler.cmd(), i.e. through a function pointer with a different type.
Broken in commit 7a7f325, v1.0.

Works in practice because hmp_quit() doesn't use its arguments, and
handle_user_command() ignores its function value.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hmp-commands.hx | 1 -
 1 file changed, 1 deletion(-)

diff --git a/hmp-commands.hx b/hmp-commands.hx
index 81f276b..fa5679f 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -47,7 +47,6 @@ ETEXI
         .args_type  = "",
         .params     = "",
         .help       = "quit the emulator",
-        .user_print = monitor_user_noop,
         .mhandler.cmd = hmp_quit,
     },
 
-- 
1.9.3