diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2010-05-28 12:21:27 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-05-28 13:29:16 +0200 |
| commit | 86fa8da83771238de55dc44819a1a27bafef5353 (patch) | |
| tree | cd890a555fd8217c6ac6d8b33e5221bc1aa24447 /pc-bios | |
| parent | 25408c09502be036e5575754fe54019ed4ed5dfa (diff) | |
| download | hqemu-86fa8da83771238de55dc44819a1a27bafef5353.zip hqemu-86fa8da83771238de55dc44819a1a27bafef5353.tar.gz | |
qcow2: Fix corruption after error in update_refcount
After it is done with updating refcounts in the cache, update_refcount writes
all changed entries to disk. If a refcount block allocation fails, however,
there was no change yet and therefore first_index = last_index = -1. Don't
treat -1 as a normal sector index (resulting in a 512 byte write!) but return
without updating anything in this case.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'pc-bios')
0 files changed, 0 insertions, 0 deletions
