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| author | Kevin Wolf <kwolf@redhat.com> | 2013-01-14 17:31:31 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-01-15 09:08:55 +0100 |
| commit | 8d2497c3552e19a60e7a75d20976471ecb2a8e2b (patch) | |
| tree | d0059fd766a2d4a024d6d42a4f1a26dea4b3c8a5 /block | |
| parent | cf7c3f0cb5a7129f57fa9e69d410d6a05031988c (diff) | |
| download | qemu-8d2497c3552e19a60e7a75d20976471ecb2a8e2b.tar.gz | |
qcow2: Fix segfault on zero-length write
One of the recent refactoring patches (commit f50f88b9) didn't take care
to initialise l2meta properly, so with zero-length writes, which don't
even enter the write loop, qemu just segfaulted.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/qcow2.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index d603f98a9c..f6abff6111 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -759,7 +759,7 @@ static coroutine_fn int qcow2_co_writev(BlockDriverState *bs, QEMUIOVector hd_qiov; uint64_t bytes_done = 0; uint8_t *cluster_data = NULL; - QCowL2Meta *l2meta; + QCowL2Meta *l2meta = NULL; trace_qcow2_writev_start_req(qemu_coroutine_self(), sector_num, remaining_sectors); |