From 68dba0bf455e60061bb3c9c40ef0d82916372664 Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Mon, 7 Jun 2010 16:43:22 +0200 Subject: qcow2: Restore L1 entry on l2_allocate failure If writing the L1 table to disk failed, we need to restore its old content in memory to avoid inconsistencies. Reported-by: Juan Quintela Signed-off-by: Kevin Wolf --- block/qcow2-cluster.c | 1 + 1 file changed, 1 insertion(+) (limited to 'block/qcow2-cluster.c') diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 03a9f25799..5760ad6d26 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -285,6 +285,7 @@ static int l2_allocate(BlockDriverState *bs, int l1_index, uint64_t **table) return 0; fail: + s->l1_table[l1_index] = old_l2_offset; qcow2_l2_cache_reset(bs); return ret; } -- cgit v1.2.1