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linux: Fix mq_timereceive check for 32 bit fallback code (BZ 29304)

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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 71d87d85bf)
This commit is contained in:
Adhemerval Zanella 2022-06-30 09:08:31 -03:00
parent 94ab2088c3
commit 4b246b2bbd
1 changed files with 1 additions and 1 deletions
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2
sysdeps/unix/sysv/linux/mq_timedreceive.c
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@ -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, int r = SYSCALL_CANCEL (mq_timedreceive_time64, mqdes, msg_ptr, msg_len,
msg_prio, abs_timeout); msg_prio, abs_timeout);
if (r == 0 || errno != ENOSYS) if (r >= 0 || errno != ENOSYS)
return r; return r;
__set_errno (EOVERFLOW); __set_errno (EOVERFLOW);
return -1; return -1;