diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index 963c20125fc98b8b1ee2c5a24eaec10431197a64..446e327180f8efe2829e5839b89886d546fab4f3 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -376,7 +376,7 @@ static int spu_set_bus_mode(struct if_spi_card *card, u16 mode)
 	err = spu_read_u16(card, IF_SPI_SPU_BUS_MODE_REG, &rval);
 	if (err)
 		return err;
-	if (rval != mode) {
+	if ((rval & 0xF) != mode) {
 		lbs_pr_err("Can't read bus mode register.\n");
 		return -EIO;
 	}