Message ID | 20221130152148.2769768-8-u.kleine-koenig@pengutronix.de (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org> 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 64863C433FE for <linux-arm-kernel@archiver.kernel.org>; Wed, 30 Nov 2022 15:24:48 +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=Aa1RwFj3ETG533YQrAiIrSDdBYFFk2rjK4Cz7539s9A=; 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Wed, 30 Nov 2022 16:21:58 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from <ukl@pengutronix.de>) id 1p0OuL-001Ldo-6R; Wed, 30 Nov 2022 16:21:57 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from <ukl@pengutronix.de>) id 1p0OuL-001Vqw-6V; Wed, 30 Nov 2022 16:21:57 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de> To: Thierry Reding <thierry.reding@gmail.com> Cc: Conor Dooley <conor.dooley@microchip.com>, Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix Kernel Team <kernel@pengutronix.de>, Fabio Estevam <festevam@gmail.com>, NXP Linux Team <linux-imx@nxp.com>, linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 07/11] pwm: imx27: Propagate errors in .get_state() to the caller Date: Wed, 30 Nov 2022 16:21:44 +0100 Message-Id: <20221130152148.2769768-8-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221130152148.2769768-1-u.kleine-koenig@pengutronix.de> References: <20221130152148.2769768-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; 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charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
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diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c index 3a22c2fddc45..29a3089c534c 100644 --- a/drivers/pwm/pwm-imx27.c +++ b/drivers/pwm/pwm-imx27.c @@ -128,7 +128,7 @@ static int pwm_imx27_get_state(struct pwm_chip *chip, ret = pwm_imx27_clk_prepare_enable(imx); if (ret < 0) - return 0; + return ret; val = readl(imx->mmio_base + MX3_PWMCR);
.get_state() can return an error indication. Make use of it to propagate failing hardware accesses. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-imx27.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)