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fix bug in synccall with no threads: lock was taken but never released
[musl]
/
src
/
thread
/
synccall.c
diff --git
a/src/thread/synccall.c
b/src/thread/synccall.c
index
7c4f92b
..
91ac5eb
100644
(file)
--- a/
src/thread/synccall.c
+++ b/
src/thread/synccall.c
@@
-54,15
+54,15
@@
void __synccall(void (*func)(void *), void *ctx)
struct chain *cur, *next;
uint64_t oldmask;
struct chain *cur, *next;
uint64_t oldmask;
- pthread_rwlock_wrlock(&lock);
-
- __syscall(SYS_rt_sigprocmask, SIG_BLOCK, (uint64_t[]){-1}, &oldmask, 8);
-
if (!libc.threads_minus_1) {
func(ctx);
return;
}
if (!libc.threads_minus_1) {
func(ctx);
return;
}
+ pthread_rwlock_wrlock(&lock);
+
+ __syscall(SYS_rt_sigprocmask, SIG_BLOCK, (uint64_t[]){-1}, &oldmask, 8);
+
sem_init(&chaindone, 0, 0);
sem_init(&chainlock, 0, 1);
chainlen = 0;
sem_init(&chaindone, 0, 0);
sem_init(&chainlock, 0, 1);
chainlen = 0;