correctly handle old kernels without FUTEX_WAIT_BITSET

[musl] / src / thread / __timedwait.c

diff --git a/src/thread/__timedwait.c b/src/thread/__timedwait.c
index 931675e..0444d39 100644 (file)
--- a/src/thread/__timedwait.c
+++ b/src/thread/__timedwait.c
@@ -16,7 +16,7 @@ static int do_wait(volatile int *addr, int val, clockid_t clk, const struct time
                if (clk == CLOCK_REALTIME) flag = FUTEX_CLOCK_REALTIME;
                if (cp) r = -__syscall_cp(SYS_futex, addr, FUTEX_WAIT_BITSET|flag, val, at, 0, -1);
                else r = -__syscall(SYS_futex, addr, FUTEX_WAIT_BITSET|flag, val, at, 0, -1);
-               if (r != ENOSYS) goto done;
+               if (r != EINVAL) goto done;
        }
        if (clock_gettime(clk, &to)) return EINVAL;
        to.tv_sec = at->tv_sec - to.tv_sec;