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From: Adhemerval Zanella <azanella@sourceware.org>
To: glibc-cvs@sourceware.org
Subject: [glibc/release/2.33/master] linux: Fix mq_timereceive check for 32 bit fallback code (BZ 29304)
Date: Thu, 30 Jun 2022 13:56:28 +0000 (GMT)	[thread overview]
Message-ID: <20220630135628.2B7E93842AF8@sourceware.org> (raw)

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d44e1a0740066416d3c331a3022ead5a7c4155ad

commit d44e1a0740066416d3c331a3022ead5a7c4155ad
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Thu Jun 30 09:08:31 2022 -0300

    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.
    
    (cherry picked from commit 71d87d85bf54f6522813aec97c19bdd24997341e)

Diff:
---
 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 eb948ccc18..d3dde7a586 100644
--- a/sysdeps/unix/sysv/linux/mq_timedreceive.c
+++ b/sysdeps/unix/sysv/linux/mq_timedreceive.c
@@ -33,7 +33,7 @@ __mq_timedreceive_time64 (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len,
                             msg_prio, abs_timeout);
 
 #ifndef __ASSUME_TIME64_SYSCALLS
-  if (ret == 0 || errno != ENOSYS)
+  if (ret >= 0 || errno != ENOSYS)
     return ret;
 
   struct timespec ts32;


                 reply	other threads:[~2022-06-30 13:56 UTC|newest]

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