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authorMarkus Armbruster <armbru@redhat.com>2015-03-06 10:09:57 +0100
committerMichael Tokarev <mjt@tls.msk.ru>2015-03-19 11:11:55 +0300
commit46db7b862ab66d14679bb96563092e7ef76f1cfb (patch)
treee050d3a9220e206c9f3c296ff092e2844c6654f9 /hmp-commands.hx
parent6093d01194edd74e24d46028b84d9d4a0a5cba17 (diff)
downloadfocaccia-qemu-46db7b862ab66d14679bb96563092e7ef76f1cfb.tar.gz
focaccia-qemu-46db7b862ab66d14679bb96563092e7ef76f1cfb.zip
hmp: Fix definition of command quit
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>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'hmp-commands.hx')
-rw-r--r--hmp-commands.hx1
1 files changed, 0 insertions, 1 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 328709dc8d..6fd5336678 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,
     },