diff --git a/[refs] b/[refs]
index a1ddc2f99f48..ebea04904c2b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 24e45bbe695719dca8c20e03d386eb6ea86526b5
+refs/heads/master: 1b7fc5aae8867046f8d3d45808309d5b7f2e036a
diff --git a/trunk/drivers/acpi/ec.c b/trunk/drivers/acpi/ec.c
index 0924992187e8..5622aee996b2 100644
--- a/trunk/drivers/acpi/ec.c
+++ b/trunk/drivers/acpi/ec.c
@@ -194,7 +194,7 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 		while (time_before(jiffies, delay)) {
 			if (acpi_ec_check_status(ec, event))
 				return 0;
-			udelay(ACPI_EC_UDELAY);
+			msleep(1);
 		}
 	}
 	pr_err(PREFIX "acpi_ec_wait timeout, status = 0x%2.2x, event = %s\n",