* dvb: fix report of error in FrontendPoll (please report any problem).

modules/access/dvb/linux_dvb.c

@@ -258,16 +258,21 @@ void E_(FrontendPoll)( access_t *p_access )
 {
     access_sys_t *p_sys = p_access->p_sys;
     frontend_t * p_frontend = p_sys->p_frontend;
-    int i_ret;
     struct dvb_frontend_event event;
     fe_status_t i_status, i_diff;
 
-    if( (i_ret = ioctl( p_sys->i_frontend_handle, FE_GET_EVENT,
-                        &event )) < 0 )
+    for( ;; )
+    {
+        int i_ret = ioctl( p_sys->i_frontend_handle, FE_GET_EVENT, &event );
+
+        if( i_ret < 0 )
         {
+            if( errno == EWOULDBLOCK )
+                return;
+
             msg_Err( p_access, "reading frontend status failed (%d) %s",
                      i_ret, strerror(errno) );
-        return;
+            continue;
         }
 
         i_status = event.status;
@@ -328,6 +333,7 @@ void E_(FrontendPoll)( access_t *p_access )
                 E_(FrontendSet)( p_access );
             }
         }
+    }
 }
 /*****************************************************************************
  * FrontendInfo : Return information about given frontend