From patchwork Sat Apr 27 20:36:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 13645750 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A33D5C4345F for ; Sat, 27 Apr 2024 20:37:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=UTUufCEwvjgyeCxkiTOyau6leS6GlTGbbv5Xz1WTzCQ=; b=Uflno1Y1K1Uxgh uVkYmiWoxXOID1rBhxA1nt/vFNZPVU0MAwGckYYyeIFFaeH72FmWj5C8dJHGyhHoHzAPlqy1qiji6 vBYfP/09B9THglZk44tZL/oY5aBJq72ilsFlUNai4pSMi2lfi7bE46rasCmFn3bN0YiRGhmmAb8R6 gbCEVUDCdkZGqU9lynCTEapX+L/HgucgRJ11XeagdsJhOzcrmTmBrk7tpnCSC7u16y4UNA6EzH8LG hIOkbwZYJL7ileR4jfXppbGCQcdijifALATSVMojYwGnP7l+R6+kZPhrkhrVN9Fu5uWoMxNbU0Y0+ 1uVIJigK7xD7sma5JzXw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s0on4-0000000G8Us-47fV; Sat, 27 Apr 2024 20:36:58 +0000 Received: from www.zeus03.de ([194.117.254.33] helo=mail.zeus03.de) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s0omi-0000000G8M9-0xye for linux-arm-kernel@lists.infradead.org; Sat, 27 Apr 2024 20:36:37 +0000 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=wxBftEHkYMQUmyq9eqJI/NqAPsdhyx/MQOFdHVmTJFI=; b=bZBZ1i spPigwswTyePXwpc39oBGmZ4zvAHVdFIS4CJQshYU094QHut33dW4aqiCNUO8Wt6 OcrK/ADcvb51QkO65EuSr65gz45DiXUfyqLXfGFIMVcUk6/CcaoJvRKU45hMmT0w 0SSRhKfof4aR6E36w/SdP3kUbcHgGWfQfmUvSN5BT5uwLU0ZkGRFRj4euNRhhhhw oWFzu0sSTof4uICSb0Gs23/c5yGCwkioIIMeRwpcQfw22SW6jo2A+g/hiCCoBis1 3JVIMP8sKT2JGKUfXpYAysXmXa2bqJC6dQI1awnDvTGQAVQvLaIYxTWjyAUOuUaF xDNkIVIhtJhAlprw== Received: (qmail 1782144 invoked from network); 27 Apr 2024 22:36:25 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 27 Apr 2024 22:36:25 +0200 X-UD-Smtp-Session: l3s3148p1@7Phd+RkXBtBehh9l From: Wolfram Sang To: linux-i2c@vger.kernel.org Cc: Wolfram Sang , Krzysztof Kozlowski , Alim Akhtar , Andi Shyti , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 14/15] i2c: s3c2410: use 'time_left' variable with wait_event_timeout() Date: Sat, 27 Apr 2024 22:36:06 +0200 Message-ID: <20240427203611.3750-15-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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240427_133636_574379_FE48BD2C X-CRM114-Status: GOOD ( 13.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org There is a confusing pattern in the kernel to use a variable named 'timeout' to store the result of wait_event_timeout() causing patterns like: timeout = wait_event_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 'long' while here. Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-s3c2410.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 275f7c42165c..01419c738cfc 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -685,7 +685,7 @@ static void s3c24xx_i2c_wait_idle(struct s3c24xx_i2c *i2c) static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int num) { - unsigned long timeout = 0; + long time_left = 0; int ret; ret = s3c24xx_i2c_set_master(i2c); @@ -715,7 +715,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, dev_err(i2c->dev, "deal with arbitration loss\n"); } } else { - timeout = wait_event_timeout(i2c->wait, i2c->msg_num == 0, HZ * 5); + time_left = wait_event_timeout(i2c->wait, i2c->msg_num == 0, HZ * 5); } ret = i2c->msg_idx; @@ -724,7 +724,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, * Having these next two as dev_err() makes life very * noisy when doing an i2cdetect */ - if (timeout == 0) + if (time_left == 0) dev_dbg(i2c->dev, "timeout\n"); else if (ret != num) dev_dbg(i2c->dev, "incomplete xfer (%d)\n", ret);