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nbd/client: fix nbd_negotiate_simple_meta_context 

Initialize received variable. Otherwise, is is possible for server to
answer without any contexts, but we will set context_id to something
random (received_id is not initialized too) and return 1, which is
wrong.

To solve it, just initialize received to false. Initialize received_id
too, just to make all possible checkers happy.

Bug was introduced in 78a33ab587 "nbd: BLOCK_STATUS for
standard get_block_status function: client part" with the whole
function.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180427142002.21930-2-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-04-27 17:20:01 +03:00 committed by Eric Blake
parent 26bd8d98c4
commit 89aa0d8763
1 changed files with 2 additions and 2 deletions
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4
nbd/client.c
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@ -613,8 +613,8 @@ static int nbd_negotiate_simple_meta_context(QIOChannel *ioc,
{
int ret;
NBDOptionReply reply;
uint32_t received_id;
bool received;
uint32_t received_id = 0;
bool received = false;
uint32_t export_len = strlen(export);
uint32_t context_len = strlen(context);
uint32_t data_len = sizeof(export_len) + export_len +