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Diffstat (limited to 'block/qcow2-snapshot.c')
-rw-r--r--block/qcow2-snapshot.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index 3529c683c6..ad8bf3dcd9 100644
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -675,7 +675,10 @@ int qcow2_snapshot_list(BlockDriverState *bs, QEMUSnapshotInfo **psn_tab)
return s->nb_snapshots;
}
-int qcow2_snapshot_load_tmp(BlockDriverState *bs, const char *snapshot_name)
+int qcow2_snapshot_load_tmp(BlockDriverState *bs,
+ const char *snapshot_id,
+ const char *name,
+ Error **errp)
{
int i, snapshot_index;
BDRVQcowState *s = bs->opaque;
@@ -687,8 +690,10 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs, const char *snapshot_name)
assert(bs->read_only);
/* Search the snapshot */
- snapshot_index = find_snapshot_by_id_or_name(bs, snapshot_name);
+ snapshot_index = find_snapshot_by_id_and_name(bs, snapshot_id, name);
if (snapshot_index < 0) {
+ error_setg(errp,
+ "Can't find snapshot");
return -ENOENT;
}
sn = &s->snapshots[snapshot_index];
@@ -699,6 +704,7 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs, const char *snapshot_name)
ret = bdrv_pread(bs->file, sn->l1_table_offset, new_l1_table, new_l1_bytes);
if (ret < 0) {
+ error_setg(errp, "Failed to read l1 table for snapshot");
g_free(new_l1_table);
return ret;
}