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timedwait: play it safe for now

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it's unclear whether EINVAL or ENOSYS is used when the operation is
not supported, so check for both...
This commit is contained in:
Rich Felker 2011-08-03 08:36:13 -04:00
commit 8aeee8db21
1 changed files with 1 additions and 1 deletions
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2
src/thread/__timedwait.c
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@ -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 != EINVAL) goto done;
if (r != EINVAL && r != ENOSYS) goto done;
}
if (clock_gettime(clk, &to)) return EINVAL;
to.tv_sec = at->tv_sec - to.tv_sec;