1 files changed, 4 insertions, 2 deletions

diff --git a/sys/dev/sio/sio_pccard.c b/sys/dev/sio/sio_pccard.c
index 571e822461867..7f9897af6f814 100644
--- a/sys/dev/sio/sio_pccard.c
+++ b/sys/dev/sio/sio_pccard.c
@@ -80,10 +80,12 @@ sio_pccard_match(device_t dev)
 	if (error != 0)
 		return (error);
 	/*
-	 * If a serial card, we are likely the right driver.
+	 * If a serial card, we are likely the right driver.  However,
+	 * some serial cards are better servered by other drivers, so
+	 * allow other drivers to claim it, if they want.
 	 */
 	if (fcn == PCCARD_FUNCTION_SERIAL)
-		return (0);
+		return (-100);
 
 	return(ENXIO);
 }