pgsql: bufmgr: Avoid spurious compiler warning after fcb9c977aa5

bufmgr: Avoid spurious compiler warning after fcb9c977aa5

Some compilers, e.g. gcc with -Og or -O1, warn about the wait_event in
BufferLockAcquire() possibly being uninitialized. That can't actually happen,
as the switch() covers all legal lock mode values, but we still need to
silence the warning. We could add a default:, but we'd like to get a warning
if we were to get a new lock mode in the future. So just initialize
wait_event to 0.

Reported-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://postgr.es/m/934395.1768518154@sss.pgh.pa.us

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/84705b37273da016633fc5c0a06e848bd6e1e71b

Modified Files
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src/backend/storage/buffer/bufmgr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)