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qapi: Tweak error message of bdrv_query_image_info 

@bs doesn't always have a device name, such as when it comes from
"qemu-img info". Report file name instead.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 20170119130759.28319-2-famz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Fam Zheng 2017-01-19 21:07:58 +08:00 committed by Max Reitz
parent 6b33f3ae8b
commit 9adceb0213
1 changed files with 2 additions and 2 deletions
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4
block/qapi.c
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@ -237,8 +237,8 @@ void bdrv_query_image_info(BlockDriverState *bs,
size = bdrv_getlength(bs); size = bdrv_getlength(bs);
if (size < 0) { if (size < 0) {
error_setg_errno(errp, -size, "Can't get size of device '%s'", error_setg_errno(errp, -size, "Can't get image size '%s'",
bdrv_get_device_name(bs)); bs->exact_filename);
goto out; goto out;
} }