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Avoid access to already-released lock in LockRefindAndRelease.

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Spotted by Tom Lane.
This commit is contained in:
Robert Haas
2014-07-24 08:19:19 -04:00
parent 1da2f64fd1
commit 18470e5f2f
1 changed files with 1 additions and 1 deletions
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2
src/backend/storage/lmgr/lock.c
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@ -2878,7 +2878,7 @@ LockRefindAndRelease(LockMethod lockMethodTable, PGPROC *proc,
* Decrement strong lock count. This logic is needed only for 2PC. * Decrement strong lock count. This logic is needed only for 2PC.
*/ */
if (decrement_strong_lock_count if (decrement_strong_lock_count
&& ConflictsWithRelationFastPath(&lock->tag, lockmode)) && ConflictsWithRelationFastPath(locktag, lockmode))
{ {
uint32 fasthashcode = FastPathStrongLockHashPartition(hashcode); uint32 fasthashcode = FastPathStrongLockHashPartition(hashcode);