diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 73bea49..5b7afc0 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -212,6 +212,7 @@
 
 static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len)
 {
+	u8 status, data = 0;
 	int i;
 
 	if (send_command(cmd) || send_argument(key)) {
@@ -219,6 +220,7 @@
 		return -EIO;
 	}
 
+	/* This has no effect on newer (2012) SMCs */
 	outb(len, APPLESMC_DATA_PORT);
 
 	for (i = 0; i < len; i++) {
@@ -229,6 +231,17 @@
 		buffer[i] = inb(APPLESMC_DATA_PORT);
 	}
 
+	/* Read the data port until bit0 is cleared */
+	for (i = 0; i < 16; i++) {
+		udelay(APPLESMC_MIN_WAIT);
+		status = inb(APPLESMC_CMD_PORT);
+		if (!(status & 0x01))
+			break;
+		data = inb(APPLESMC_DATA_PORT);
+	}
+	if (i)
+		pr_warn("flushed %d bytes, last value is: %d\n", i, data);
+
 	return 0;
 }