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From 71d87d85bf54f6522813aec97c19bdd24997341e Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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;
--
1.8.3.1
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