From patchwork Tue May 7 14:36:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philippe Schenker X-Patchwork-Id: 10933077 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9A97E1390 for ; Tue, 7 May 2019 14:37:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 858AF2848D for ; Tue, 7 May 2019 14:37:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 795DA287BD; Tue, 7 May 2019 14:37:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 228992848D for ; Tue, 7 May 2019 14:37:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=v7moF3hWpL3GiKVO4AKH8NMVGkvpyw7EeDh8doaEx9Q=; b=kyZoOCJ/t+gy3P 7tcb6et+ePdyoVzy6djLwoqtppI9cy7eKPTic/ooDUoAXehBshofCUsP2/6o5+S44z2hTgFo0kuqj MblrLFPjdlUvqAsziHvHW64JdyVHeOIgegUzyNKg58KCsjBAFNe2ku8u9k1d/zZFfPvoQJH+CfXLl BRPDOJkpJjOwVDPWGntzk4aco6D9e0UBcmJj1SHb4YuEqCXeChnEUySbd2YGc9B6i0dJJQrWenyDS FEol7+N3q8fxM/2NNXvgyPVG+jcPCRKtPICBZGlZ8p1MX3H7tTWDsIz+nIjqT84uqDHyWrwvJlkcb 3tx91GV5mA/3FLp2Mp6A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hO1DZ-000593-4H; Tue, 07 May 2019 14:37:17 +0000 Received: from mxout013.mail.hostpoint.ch ([2a00:d70:0:e::313]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hO1Cw-0004Lq-Iv for linux-arm-kernel@lists.infradead.org; Tue, 07 May 2019 14:36:40 +0000 Received: from [10.0.2.46] (helo=asmtp013.mail.hostpoint.ch) by mxout013.mail.hostpoint.ch with esmtp (Exim 4.91 (FreeBSD)) (envelope-from ) id 1hO1Ch-000IFQ-3D; Tue, 07 May 2019 16:36:23 +0200 Received: from [46.140.72.82] (helo=philippe-pc.toradex.int) by asmtp013.mail.hostpoint.ch with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91 (FreeBSD)) (envelope-from ) id 1hO1Cg-0008oW-Sg; Tue, 07 May 2019 16:36:23 +0200 X-Authenticated-Sender-Id: dev@pschenker.ch From: Philippe Schenker To: linux-iio@vger.kernel.org, Jonathan Cameron , Stefan Agner , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler Subject: [PATCH 4/5] iio: stmpe-adc: Use wait_for_completion_timeout Date: Tue, 7 May 2019 16:36:14 +0200 Message-Id: <20190507143615.28477-4-dev@pschenker.ch> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190507143615.28477-1-dev@pschenker.ch> References: <20190507143615.28477-1-dev@pschenker.ch> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190507_073638_618066_F3CCE106 X-CRM114-Status: UNSURE ( 9.32 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Coquelin , Alexandre Torgue , Marcel Ziswiler , linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Philippe Schenker , David Laight , Max Krummenacher , Lee Jones , dev@pschenker.ch, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Philippe Schenker Use wait_for_completion_timeout instead of wait_for_completion_interuptible_timeout. The interruptible variant gets constantly interrupted if a user program is compiled with the -pg option. The killable variant was not used due to the fact that a second program, reading on this device, that gets killed is then also killing that wait. Signed-off-by: Philippe Schenker --- drivers/iio/adc/stmpe-adc.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/iio/adc/stmpe-adc.c b/drivers/iio/adc/stmpe-adc.c index 82b43e4522b6..cc752a47444c 100644 --- a/drivers/iio/adc/stmpe-adc.c +++ b/drivers/iio/adc/stmpe-adc.c @@ -77,17 +77,11 @@ static int stmpe_read_voltage(struct stmpe_adc *info, stmpe_reg_write(info->stmpe, STMPE_REG_ADC_CAPT, STMPE_ADC_CH(info->channel)); - *val = info->value; - - ret = wait_for_completion_interruptible_timeout - (&info->completion, STMPE_ADC_TIMEOUT); + ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); if (ret <= 0) { mutex_unlock(&info->lock); - if (ret == 0) - return -ETIMEDOUT; - else - return ret; + return -ETIMEDOUT; } *val = info->value; @@ -116,15 +110,11 @@ static int stmpe_read_temp(struct stmpe_adc *info, stmpe_reg_write(info->stmpe, STMPE_REG_TEMP_CTRL, STMPE_START_ONE_TEMP_CONV); - ret = wait_for_completion_interruptible_timeout - (&info->completion, STMPE_ADC_TIMEOUT); + ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT); if (ret <= 0) { mutex_unlock(&info->lock); - if (ret == 0) - return -ETIMEDOUT; - else - return ret; + return -ETIMEDOUT; } /*