From 00c65e1556ac9b70683c01136ee933bbb6d4d84a Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Tue, 1 Jun 2010 13:53:07 +0000 Subject: OTP-8662 Fix ethr_rwmutex_tryrlock ethr_rwmutex_tryrlock() acquired and refused to acquire a lock with inverted logic. The lock was however never acquired in a thread unsafe manner. (Thanks to JR Zhang for noting this issue) --- erts/lib_src/common/ethread.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'erts/lib_src/common/ethread.c') diff --git a/erts/lib_src/common/ethread.c b/erts/lib_src/common/ethread.c index a4ec4c448b..9c88233934 100644 --- a/erts/lib_src/common/ethread.c +++ b/erts/lib_src/common/ethread.c @@ -3216,7 +3216,7 @@ ethr_rwmutex_tryrlock(ethr_rwmutex *rwmtx) res = ethr_mutex_trylock__(&rwmtx->mtx); if (res != 0) return res; - if (!rwmtx->waiting_writers) { + if (rwmtx->waiting_writers) { res = ethr_mutex_unlock__(&rwmtx->mtx); if (res == 0) return EBUSY; -- cgit v1.2.3