From patchwork Tue Mar 1 09:06:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiasheng Jiang X-Patchwork-Id: 12764378 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 616A8C433F5 for ; Tue, 1 Mar 2022 09:08:00 +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: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:In-Reply-To:References: List-Owner; bh=hrZ2wQjol+Hto89WvfnWgNG/AbPiD79Hqjd65g+ytUs=; b=1xxH/fRRss1Zxu G9G9b9YWM6autWwd93fiw9NjHRBsxv5RtGLFpxkMDdqrKraH6qZhRqh+AmBlEdsLpXZt7eAW02egH 78ggj79Cpdm+0ZFTOIjdZT+lRkT3t3nAS6QrXNGblviZBu6HG6m8wczi6anwGzgI5l1UDphdEsKUp kuPwKWi+bxKl6tGJ15uVR8ozWHkef2+m31pLwwek6YnjntMt1btCuk8pZtzGRSbuI+qFQIL0A7xWz wweDQRVBQwmZF2Mn3m6l6orGbZ2byk5u9wW45w09U/tLhpwllzxgd5g2SzpebO7xI2Ly7XeHWIfnh Y11Vv/Kl47D8ovq1rFbQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nOyT4-00FlbA-I9; Tue, 01 Mar 2022 09:06:50 +0000 Received: from smtp21.cstnet.cn ([159.226.251.21] helo=cstnet.cn) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nOyT0-00FlaP-QW for linux-arm-kernel@lists.infradead.org; Tue, 01 Mar 2022 09:06:48 +0000 Received: from localhost.localdomain (unknown [124.16.138.126]) by APP-01 (Coremail) with SMTP id qwCowAC3V8Ue4h1iFBzxAQ--.26163S2; Tue, 01 Mar 2022 17:06:38 +0800 (CST) From: Jiasheng Jiang To: codrin.ciubotariu@microchip.com, lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, claudiu.beznea@microchip.com Cc: alsa-devel@alsa-project.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jiasheng Jiang Subject: [PATCH] ASoC: atmel_ssc_dai: Handle errors for clk_enable Date: Tue, 1 Mar 2022 17:06:37 +0800 Message-Id: <20220301090637.3776558-1-jiasheng@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: qwCowAC3V8Ue4h1iFBzxAQ--.26163S2 X-Coremail-Antispam: 1UD129KBjvdXoW7Xr47trWfJF4UZr4UZw4xZwb_yoWDGFg_Wa n7Ww1DXrW5CrWFy3WDur45ArWj9ry7ZrW3tw18tF15tFWUAF1akrW5Janxur17ur4ava4f GrnFqryfAFW7WjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbVAFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVWxJr0_GcWl84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s 0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xII jxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr 1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxa n2IY04v7MxkIecxEwVAFwVW8uwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJV W8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF 1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6x IIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6rWUJVWrZr1UMIIF 0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxh VjvjDU0xZFpf9x0JUhNVgUUUUU= X-Originating-IP: [124.16.138.126] X-CM-SenderInfo: pmld2xxhqjqxpvfd2hldfou0/ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220301_010647_273214_ED5C7D94 X-CRM114-Status: GOOD ( 12.13 ) 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 As the potential failure of the clk_enable(), it should be better to check it and return error if fals. Fixes: cbaadf0f90d6 ("ASoC: atmel_ssc_dai: refactor the startup and shutdown") Signed-off-by: Jiasheng Jiang --- sound/soc/atmel/atmel_ssc_dai.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c index 26e2bc690d86..c1dea8d62416 100644 --- a/sound/soc/atmel/atmel_ssc_dai.c +++ b/sound/soc/atmel/atmel_ssc_dai.c @@ -280,7 +280,10 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream, /* Enable PMC peripheral clock for this SSC */ pr_debug("atmel_ssc_dai: Starting clock\n"); - clk_enable(ssc_p->ssc->clk); + ret = clk_enable(ssc_p->ssc->clk); + if (ret) + return ret; + ssc_p->mck_rate = clk_get_rate(ssc_p->ssc->clk); /* Reset the SSC unless initialized to keep it in a clean state */