qdev: Fix device_add DRIVER,help to print to monitor

Help on device properties gets printed to stdout instead of the
monitor.  If you have the monitor anywhere else, no help for you.
Broken when commit e1043d674d "qdev: use object_property_help()"
accidentally switched from qemu_printf() to printf().  Switch right
back.

Fixes: e1043d674d792ff64aebae1a3eafc08b38a8a085
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200714160202.3121879-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

diff --git a/qdev-monitor.c b/qdev-monitor.c
index 71ebce19df12b44cf98112eec9576f8ae46e57ef..e9b7228480ddba2b9d4c393b7a9d02ff86687be3 100644 (file)
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -300,7 +300,7 @@ int qdev_device_help(QemuOpts *opts)
     }
     g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
     for (i = 0; i < array->len; i++) {
-        printf("%s\n", (char *)array->pdata[i]);
+        qemu_printf("%s\n", (char *)array->pdata[i]);
     }
     g_ptr_array_set_free_func(array, g_free);
     g_ptr_array_free(array, true);