Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932773AbbDMPma (ORCPT ); Mon, 13 Apr 2015 11:42:30 -0400 Received: from mga02.intel.com ([134.134.136.20]:39570 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932726AbbDMPmY (ORCPT ); Mon, 13 Apr 2015 11:42:24 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,570,1422950400"; d="scan'208";a="712941387" From: Irina Tirdea To: Jonathan Cameron , linux-iio@vger.kernel.org, Hartmut Knaack Cc: linux-kernel@vger.kernel.org, Vlad Dogaru , Irina Tirdea Subject: [PATCH v2 12/17] iio: accel: mma9553: fix gpio bitnum init value Date: Mon, 13 Apr 2015 18:40:59 +0300 Message-Id: <1428939664-12503-13-git-send-email-irina.tirdea@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1428939664-12503-1-git-send-email-irina.tirdea@intel.com> References: <1428939664-12503-1-git-send-email-irina.tirdea@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1250 Lines: 42 Initial value of gpio bitnum is set to -1, but the variable is declared as unsigned. Use a positive invalid value for initial gpio bitnum. Signed-off-by: Irina Tirdea Suggested-by: Hartmut Knaack --- drivers/iio/accel/mma9553.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c index 9573147..5755977 100644 --- a/drivers/iio/accel/mma9553.c +++ b/drivers/iio/accel/mma9553.c @@ -78,6 +78,7 @@ /* Bitnum used for GPIO configuration = bit number in high status byte */ #define MMA9553_STATUS_TO_BITNUM(bit) (ffs(bit) - 9) +#define MMA9553_MAX_BITNUM MMA9553_STATUS_TO_BITNUM(BIT(16)) #define MMA9553_DEFAULT_SAMPLE_RATE 30 /* Hz */ @@ -404,8 +405,8 @@ static int mma9553_init(struct mma9553_data *data) } - data->gpio_bitnum = -1; /* Reset GPIO */ + data->gpio_bitnum = MMA9553_MAX_BITNUM; ret = mma9553_conf_gpio(data); if (ret < 0) return ret; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/