[monojob] Report ongoing job status as overall return status on timeout

If a job times out then use the most recent ongoing error status
reported via job_progress() (if available) as the overall return
status.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/core/monojob.c

 	unsigned long total;
 	unsigned int percentage;
 	int shown_percentage = 0;
+	int ongoing_rc;
 	int key;
 	int rc;
 
 			last_keycheck = now;
 		}
 
+		/* Monitor progress */
+		ongoing_rc = job_progress ( &monojob, &progress );
+
 		/* Check for timeout, if applicable */
 		elapsed = ( now - start );
 		if ( timeout && ( elapsed >= timeout ) ) {
-			monojob_rc = -ETIMEDOUT;
+			monojob_rc = ( ongoing_rc ? ongoing_rc : -ETIMEDOUT );
 			break;
 		}
 
 		if ( string && ( elapsed >= TICKS_PER_SEC ) ) {
 			if ( shown_percentage )
 				printf ( "\b\b\b\b    \b\b\b\b" );
-			job_progress ( &monojob, &progress );
 			/* Normalise progress figures to avoid overflow */
 			completed = ( progress.completed / 128 );
 			total = ( progress.total / 128 );