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qcow2: Emit errp when truncating the image tail

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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
1 changed files with 7 additions and 6 deletions
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13
block/qcow2.c
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@ -3145,12 +3145,13 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset,
return last_cluster;
}
if ((last_cluster + 1) * s->cluster_size < old_file_size) {
ret = bdrv_truncate(bs->file, (last_cluster + 1) * s->cluster_size,
PREALLOC_MODE_OFF, NULL);
if (ret < 0) {
warn_report("Failed to truncate the tail of the image: %s",
strerror(-ret));
ret = 0;
Error *local_err = NULL;
bdrv_truncate(bs->file, (last_cluster + 1) * s->cluster_size,
PREALLOC_MODE_OFF, &local_err);
if (local_err) {
warn_reportf_err(local_err,
"Failed to truncate the tail of the image: ");
}
}
} else {