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btrfs-progs: fix uninitialized warning in btrfs_calc_stripe_index

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chunk-recover.c: In function btrfs_calc_stripe_index
chunk-recover.c:1481: warning: index may be used uninitialized in this function

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Anand Jain 2014-10-07 06:27:16 +08:00 committed by David Sterba
parent e3966ec9d0
commit 7fd6d93352
1 changed files with 3 additions and 1 deletions
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4
chunk-recover.c
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@ -1491,7 +1491,7 @@ static int btrfs_calc_stripe_index(struct chunk_record *chunk, u64 logical)
stripe_nr /= nr_data_stripes;
index = (index + stripe_nr) % chunk->num_stripes;
} else {
BUG_ON(1);
return -1;
}
return index;
}
@ -1554,6 +1554,7 @@ btrfs_rebuild_ordered_meta_chunk_stripes(struct recover_control *rc,
again:
er = container_of(cache, struct extent_record, cache);
index = btrfs_calc_stripe_index(chunk, er->cache.start);
BUG_ON(index == -1);
if (chunk->stripes[index].devid)
goto next;
list_for_each_entry_safe(devext, next, &devexts, chunk_list) {
@ -1944,6 +1945,7 @@ next_csum:
if (list_is_last(candidates.next, &candidates)) {
index = btrfs_calc_stripe_index(chunk,
key.offset + csum_offset * blocksize);
BUG_ON(index == -1);
if (chunk->stripes[index].devid)
goto next_stripe;
ret = insert_stripe(&candidates, rc, chunk, index);