rsockets: Fix for cm_svc_run thread

When the cm_svc_run thread starts, svc->contexts will be initialized with four elements. When reallocating memory due to an increased element count, svc->contexts will point to new addresses, whereas the fds variable in the cm_svc_run thread is free of the address, which will result in subsequent cm_svc_run threads running incorrectly. So we need to update the fds variable every time the cm_svc_process_sock function is processed.

Fixes: b60c79d ("rsockets: Use service thread to accept connections")
Signed-off-by: linxiaochou <929331108@qq.com>

librdmacm/rsocket.c

@@ -4678,8 +4678,11 @@ static void *cm_svc_run(void *arg)
  fds[i].revents = 0;
 
  poll(fds, svc->cnt + 1, -1);
- if (fds[0].revents)
+ if (fds[0].revents) {
  cm_svc_process_sock(svc);
+ /* svc->contexts may have been reallocated, so need to assign again */
+ fds = svc->contexts;
+ }
 
  for (i = 1; i <= svc->cnt; i++) {
  if (!fds[i].revents)