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>
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@ -126,7 +126,16 @@ static void release_drive(Object *obj, const char *name, void *opaque)
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static char *print_drive(void *ptr)
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{
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return g_strdup(blk_name(ptr));
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const char *name;
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name = blk_name(ptr);
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if (!*name) {
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BlockDriverState *bs = blk_bs(ptr);
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if (bs) {
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name = bdrv_get_node_name(bs);
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}
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}
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return g_strdup(name);
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}
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static void get_drive(Object *obj, Visitor *v, const char *name, void *opaque,
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