From 80a8d1228e90349b4514e8c925c061fa5cbcea75 Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Fri, 20 Nov 2009 19:48:23 +0100
Subject: [PATCH] thinkpad-acpi: fix sign of ERESTARTSYS return

The returned error should be negative

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index d93108d148f..03c0a56f0c8 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6313,7 +6313,7 @@ static int brightness_write(char *buf)
 	 * Doing it this way makes the syscall restartable in case of EINTR
 	 */
 	rc = brightness_set(level);
-	return (rc == -EINTR)? ERESTARTSYS : rc;
+	return (rc == -EINTR)? -ERESTARTSYS : rc;
 }
 
 static struct ibm_struct brightness_driver_data = {
-- 
2.20.1