From patchwork Sat Apr 27 20:36:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 13645739 Received: from mail.zeus03.de (www.zeus03.de [194.117.254.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 968EF15B0F4 for ; Sat, 27 Apr 2024 20:36:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714250197; cv=none; b=RR0srVBP8+G6bNo2iQIC0M77Wyp8Nl7600J9jAFPBNadUdnGhvgmBqQR/ryDXnM9PKnNP/5wdNF6eIZoztQRC9gXV1Cq8vsjouM4iFBtnqTMq8jVN1zBvrzoyGCvVSvZCmU6JMFtnMQ+d1jE3dIgtWvB+kbTsosaQEtEBuOgwZc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714250197; c=relaxed/simple; bh=9xH6xQ0iM5hWBrxXUfKOBqLqw+/88LiBx0LmN8wQM+4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QVaJWTpomae7qsfxUfpBbG9eg6EhBF0WREyqN6netOSc6gtomII1a0az5NAUctyU5cRfBkr/Kz8+76qXHu1xkKZXJYbPWKqWQjmosXew26j+o1v3bTyJ2m9YQWzx597qs5SwOb9AjxH21oeJpkf2pawx6vZ/h0d6Cj8k8YtYoFE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=SQfDD+nq; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="SQfDD+nq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; s=k1; bh=cTlq5+NeurWDjBC43r6sTnS6ae5jK95Gz2jK8PwGMpI=; b=SQfDD+ nqamKv0HLFYg+o9mTGxdZI99eK8DpiOQXl2bwmqlDEzxaLvDil0CuTKV/f+4K2Hr O+FfuoVmtMXuvI5cB3472PyEZmWA6rKaEN66Sr64/Cx/OKbKxTPRDqS4nPPdZVZi M1e/O2g+pHDavELKX/Ms800bRXRGkHfgZKIQMhuzox7TmE2MG8eyR3ezOTd6kLDy H4r4z+ZotMno2uiIi+cP3T0RlzY7kGWjnFkooO7+mCcx6j3ofkvGPq9ra6vTIOD+ IVCWx4AKXPZAuUzOf7zlvXp4TfC7r9MjEDtM/SpkCyknsxc+/p4W/76VzenzjwFE 0Nio/4WWwheNDxnA== Received: (qmail 1782081 invoked from network); 27 Apr 2024 22:36:24 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 27 Apr 2024 22:36:24 +0200 X-UD-Smtp-Session: l3s3148p1@beZD+RkX8M9ehh9l From: Wolfram Sang To: linux-i2c@vger.kernel.org Cc: Wolfram Sang , Bjorn Andersson , Konrad Dybcio , Andi Shyti , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 12/15] i2c: qcom-geni: use 'time_left' variable with wait_for_completion_timeout() Date: Sat, 27 Apr 2024 22:36:04 +0200 Message-ID: <20240427203611.3750-13-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240427203611.3750-1-wsa+renesas@sang-engineering.com> References: <20240427203611.3750-1-wsa+renesas@sang-engineering.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 There is a confusing pattern in the kernel to use a variable named 'timeout' to store the result of wait_for_completion_timeout() causing patterns like: timeout = wait_for_completion_timeout(...) if (!timeout) return -ETIMEDOUT; with all kinds of permutations. Use 'time_left' as a variable to make the code self explaining. Fix to the proper variable type 'unsigned long' while here. Signed-off-by: Wolfram Sang Reviewed-by: Bryan O'Donoghue Reviewed-by: Bjorn Andersson --- drivers/i2c/busses/i2c-qcom-geni.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 090b4846ed62..0a8b95ce35f7 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -586,7 +586,8 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i { struct dma_slave_config config = {}; struct gpi_i2c_config peripheral = {}; - int i, ret = 0, timeout; + int i, ret = 0; + unsigned long time_left; dma_addr_t tx_addr, rx_addr; void *tx_buf = NULL, *rx_buf = NULL; const struct geni_i2c_clk_fld *itr = gi2c->clk_fld; @@ -629,8 +630,8 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i dma_async_issue_pending(gi2c->tx_c); - timeout = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT); - if (!timeout) + time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT); + if (!time_left) gi2c->err = -ETIMEDOUT; if (gi2c->err) {