summaryrefslogtreecommitdiffstats
path: root/lib/libkse/thread/thr_mutex.c
diff options
context:
space:
mode:
authoralfred <alfred@FreeBSD.org>2000-08-13 01:30:36 +0000
committeralfred <alfred@FreeBSD.org>2000-08-13 01:30:36 +0000
commitc90f528c4877ab2f0b1c72b6a66221ef112d9edb (patch)
treee211d1aaeae2dc608b5e87ba68cd1750713cbdff /lib/libkse/thread/thr_mutex.c
parent880b607621269a90e4cec082280fc6088d3f20a6 (diff)
downloadFreeBSD-src-c90f528c4877ab2f0b1c72b6a66221ef112d9edb.zip
FreeBSD-src-c90f528c4877ab2f0b1c72b6a66221ef112d9edb.tar.gz
Fix an off-by-one error in the recursive mutex handling that made it
prematurely release recursive mutexes. Test case provided by: Bradley T. Hughes <bhughes@trolltech.com> Reviewed by: deischen
Diffstat (limited to 'lib/libkse/thread/thr_mutex.c')
-rw-r--r--lib/libkse/thread/thr_mutex.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/libkse/thread/thr_mutex.c b/lib/libkse/thread/thr_mutex.c
index 12fdc8e..b8877f8 100644
--- a/lib/libkse/thread/thr_mutex.c
+++ b/lib/libkse/thread/thr_mutex.c
@@ -753,7 +753,7 @@ mutex_unlock_common(pthread_mutex_t * mutex, int add_reference)
ret = (*mutex)->m_owner == NULL ? EINVAL : EPERM;
}
else if (((*mutex)->m_type == PTHREAD_MUTEX_RECURSIVE) &&
- ((*mutex)->m_data.m_count > 1)) {
+ ((*mutex)->m_data.m_count > 0)) {
/* Decrement the count: */
(*mutex)->m_data.m_count--;
} else {
@@ -821,7 +821,7 @@ mutex_unlock_common(pthread_mutex_t * mutex, int add_reference)
ret = (*mutex)->m_owner == NULL ? EINVAL : EPERM;
}
else if (((*mutex)->m_type == PTHREAD_MUTEX_RECURSIVE) &&
- ((*mutex)->m_data.m_count > 1)) {
+ ((*mutex)->m_data.m_count > 0)) {
/* Decrement the count: */
(*mutex)->m_data.m_count--;
} else {
@@ -939,7 +939,7 @@ mutex_unlock_common(pthread_mutex_t * mutex, int add_reference)
ret = (*mutex)->m_owner == NULL ? EINVAL : EPERM;
}
else if (((*mutex)->m_type == PTHREAD_MUTEX_RECURSIVE) &&
- ((*mutex)->m_data.m_count > 1)) {
+ ((*mutex)->m_data.m_count > 0)) {
/* Decrement the count: */
(*mutex)->m_data.m_count--;
} else {
OpenPOWER on IntegriCloud