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migration/block-dirty-bitmap: fix uninitialized variable warning

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A default value is provided for the variable 'bitmap_name' to avoid
a compiler warning.

The compiler showed the warning:
migration/block-dirty-bitmap.c:1090:13: warning: ‘bitmap_name’
may be used uninitialized in this function [-Wmaybe-uninitialized]
       g_strlcpy(s->bitmap_name, bitmap_name, sizeof(s->bitmap_name));
       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Message-Id: <20201014114430.1898684-1-kuhn.chenqun@huawei.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[eblake: commit message grammar tweaks]
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Chen Qun 2020-10-14 19:44:30 +08:00 committed by Eric Blake
parent ed7b70c27b
commit a024890a64
1 changed files with 9 additions and 12 deletions
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21
migration/block-dirty-bitmap.c
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@ -1072,18 +1072,15 @@ static int dirty_bitmap_load_header(QEMUFile *f, DBMLoadState *s,
return -EINVAL;
}
if (!s->cancelled) {
if (bitmap_alias_map) {
bitmap_name = g_hash_table_lookup(bitmap_alias_map,
s->bitmap_alias);
if (!bitmap_name) {
error_report("Error: Unknown bitmap alias '%s' on node "
"'%s' (alias '%s')", s->bitmap_alias,
s->bs->node_name, s->node_alias);
cancel_incoming_locked(s);
}
} else {
bitmap_name = s->bitmap_alias;
bitmap_name = s->bitmap_alias;
if (!s->cancelled && bitmap_alias_map) {
bitmap_name = g_hash_table_lookup(bitmap_alias_map,
s->bitmap_alias);
if (!bitmap_name) {
error_report("Error: Unknown bitmap alias '%s' on node "
"'%s' (alias '%s')", s->bitmap_alias,
s->bs->node_name, s->node_alias);
cancel_incoming_locked(s);
}
}