From 71d87d85bf54f6522813aec97c19bdd24997341e Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Thu, 30 Jun 2022 09:08:31 -0300 Subject: [PATCH] linux: Fix mq_timereceive check for 32 bit fallback code (BZ 29304) On success, mq_receive() and mq_timedreceive() return the number of bytes in the received message, so it requires to check if the value is larger than 0. Checked on i686-linux-gnu. --- sysdeps/unix/sysv/linux/mq_timedreceive.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sysdeps/unix/sysv/linux/mq_timedreceive.c b/sysdeps/unix/sysv/linux/mq_timedreceive.c index 834cd7a..5bf1e0a 100644 --- a/sysdeps/unix/sysv/linux/mq_timedreceive.c +++ b/sysdeps/unix/sysv/linux/mq_timedreceive.c @@ -41,7 +41,7 @@ ___mq_timedreceive_time64 (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len { int r = SYSCALL_CANCEL (mq_timedreceive_time64, mqdes, msg_ptr, msg_len, msg_prio, abs_timeout); - if (r == 0 || errno != ENOSYS) + if (r >= 0 || errno != ENOSYS) return r; __set_errno (EOVERFLOW); return -1; -- 2.7.4