From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753325AbaEHH4r (ORCPT ); Thu, 8 May 2014 03:56:47 -0400 Received: from smtp39.i.mail.ru ([94.100.177.99]:41381 "EHLO smtp39.i.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752707AbaEHH4q (ORCPT ); Thu, 8 May 2014 03:56:46 -0400 From: Alexander Shiyan To: linux-kernel@vger.kernel.org Cc: Evgeniy Polyakov , Sascha Hauer , Shawn Guo , Alexander Shiyan Subject: [PATCH 1/4] w1: mxc_w1: Fix incorrect "presence" status Date: Thu, 8 May 2014 11:56:37 +0400 Message-Id: <1399535800-19335-1-git-send-email-shc_work@mail.ru> X-Mailer: git-send-email 1.8.3.2 X-Spam: Not detected X-Mras: Ok Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org W1 reset_bus() should return zero if slave device is present. This patch fix this issue. Signed-off-by: Alexander Shiyan --- Please apply this patch to current -rc if it possible. --- drivers/w1/masters/mxc_w1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/w1/masters/mxc_w1.c b/drivers/w1/masters/mxc_w1.c index 67b067a..a5df5e8 100644 --- a/drivers/w1/masters/mxc_w1.c +++ b/drivers/w1/masters/mxc_w1.c @@ -66,7 +66,7 @@ static u8 mxc_w1_ds2_reset_bus(void *data) udelay(100); } - return !!(reg_val & MXC_W1_CONTROL_PST); + return !(reg_val & MXC_W1_CONTROL_PST); } /* -- 1.8.3.2