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block/qdev: Let 'drive' property fall back to node name 

If a qdev block device is created with an anonymous BlockBackend (i.e.
a node name rather than a BB name was given for the drive property),
qdev used to return an empty string when the property was read. This
patch fixes it to return the node name instead.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2016-08-04 14:09:07 +02:00
parent cf5198d580
commit bd7c41765b
1 changed files with 10 additions and 1 deletions
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11
hw/core/qdev-properties-system.c
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@ -126,7 +126,16 @@ static void release_drive(Object *obj, const char *name, void *opaque)
static char *print_drive(void *ptr)
{
return g_strdup(blk_name(ptr));
const char *name;
name = blk_name(ptr);
if (!*name) {
BlockDriverState *bs = blk_bs(ptr);
if (bs) {
name = bdrv_get_node_name(bs);
}
}
return g_strdup(name);
}
static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque,