qcow2: Emit errp when truncating the image tail

bdrv_truncate() has an errp parameter which is always set when an error
occurs.  Let's use that instead of a plain strerror().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20171009155431.14093-1-mreitz@redhat.com
Reviewed-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2017-10-09 17:54:31 +02:00
parent b66df843b4
commit 233521b199

View File

@ -3145,12 +3145,13 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset,
return last_cluster; return last_cluster;
} }
if ((last_cluster + 1) * s->cluster_size < old_file_size) { if ((last_cluster + 1) * s->cluster_size < old_file_size) {
ret = bdrv_truncate(bs->file, (last_cluster + 1) * s->cluster_size, Error *local_err = NULL;
PREALLOC_MODE_OFF, NULL);
if (ret < 0) { bdrv_truncate(bs->file, (last_cluster + 1) * s->cluster_size,
warn_report("Failed to truncate the tail of the image: %s", PREALLOC_MODE_OFF, &local_err);
strerror(-ret)); if (local_err) {
ret = 0; warn_reportf_err(local_err,
"Failed to truncate the tail of the image: ");
} }
} }
} else { } else {