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qcow2: Don't shadow return value 

When trying to update the refcounts for a snapshot, the return value of
update_refcount on a compressed cluster was pretty much ignored,
cancelling the update on error but returning 0. This is caused by an
inner "ret" variable shadowing the outer one (the latter is used in the
return statement).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2013-09-24 13:50:46 +02:00 committed by Kevin Wolf
parent ff42308f30
commit 7454d60045
1 changed files with 0 additions and 1 deletions
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1
block/qcow2-refcount.c
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@ -874,7 +874,6 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs,
nb_csectors = ((offset >> s->csize_shift) &
s->csize_mask) + 1;
if (addend != 0) {
int ret;
ret = update_refcount(bs,
(offset & s->cluster_offset_mask) & ~511,
nb_csectors * 512, addend,