qemu /
qemu /
bd74ecd1c39ca7699819ca5cf39c07f50c5f8d5d qom: Fix default values in help
Output of default values in device help is broken:
$ ./qemu-system-x86_64 -S -display none -monitor stdio
QEMU 5.2.50 monitor - type 'help' for more information
(qemu) device_add pvpanic,help
pvpanic options:
events=<uint8> - (default: (null))
ioport=<uint16> - (default: (null))
pvpanic[0]=<child<qemu:memory-region>>
The "(null)" is glibc printing a null pointer. Other systems crash
instead. Having a help request crash a running VM can really spoil
your day.
Root cause is a botched replacement of qstring_free() by
g_string_free(): to get the string back, we need to pass true to the
former, but false to the latter. Fix the argument.
Fixes: eab3a4678b07267c39e7290a6e9e7690b1d2a521
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210324084130.3986072-1-armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
1 file changed
