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 71d87d85bf)
This commit is contained in:
Adhemerval Zanella 2022-06-30 09:08:31 -03:00
parent 94ab2088c3
commit 4b246b2bbd

View File

@ -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;