From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f171.google.com (mail-pl1-f171.google.com [209.85.214.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2095E3D170C for ; Fri, 8 May 2026 10:39:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778236768; cv=none; b=NHwxO3DiCaobPQMsrc8DSZkGajSI8MsN+uE2a0EkgLUJrmt8VGP3bOALJQ7WC5lOOb+ipLsmcmTUSIme+G1WpeYUhsDhHR1aaSxACaZdRiJ3x2d6/ZWvnGtB96QJ4udC/RTidyUfsJs4iR+SzyZzprO/sNpOYrQqxnl5oQz3UyE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778236768; c=relaxed/simple; bh=MLsKqFKAlvte/Ce0NqocdXRNTbr4yO+y0hO4ieQL4ow=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pceO1NV5dUu+UOOM2C8HHPdEW3CDcB2exOUGCUf/wB0IYWgaa9pnd7Gw0veSY914caFQ19bNzfyNdsjDN7bcnleqyX/DXTCRUiGBdPy6oIWrhMbo1Bzu22G1NHS3478eaa102CppQRXieKucQVFcSVyhrRIKh6Kop1Tzf/8gpoo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=RgUS7yJH; arc=none smtp.client-ip=209.85.214.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RgUS7yJH" Received: by mail-pl1-f171.google.com with SMTP id d9443c01a7336-2ad4d639db3so9537135ad.0 for ; Fri, 08 May 2026 03:39:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778236766; x=1778841566; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WOavnxnn6OqOTlyeC3XVG683zOAFflfaW3EaEqxauqo=; b=RgUS7yJHF5S+nPf5JD6tEABtHdxrNtQaJrGcgzx+QrsMr0ophz8FViSpG6miKoIdHy gygFgVGpvdmkSx7wQhbIlSjMvOkY9738FIa670+3IZTNbfPKYLv5QyrQFsSDPxpOoc+A OnRTjr90pZ5DjkOtmVbqTcKGYw81QzSBsUw0ZU8nHNez80VgQUDwEzK6m9mk9FMRXBgE orSdkYBdQHhIzTkqxqZr9D3r4Oe4/3Jk8qYS7JNQK+wfPAD6qTRB6El6hZAXcLQDaQTK d1K0txOJy13tdA8BdPjZ4nZjsEdCCa5ud0y6AvACL7b20oRgkTvcjkJ/1XhaGgAYoheR e+3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778236766; x=1778841566; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=WOavnxnn6OqOTlyeC3XVG683zOAFflfaW3EaEqxauqo=; b=jbBTsgzHtEhmaVuJTKY7EUcp3fkKtsmZt8mUxkBVjxfes6M3DK+68AsS4+rrFrKlb4 O81Z613Geb0M01vpjLlmVm0QomTDr4Jd1szCS8G2YkdBGg21u1KGhXlwEwsTPxkM8Qf5 qFjRpn1/LHdkTWTTt1/cqBNRZw3rsTFHn8m3YXmVdh2Ca9oEImkKRPmTxXUAP28FcxUj VNFKN5MSycNlbIuKkGIDgbOunNs2GmwkdEbQoBRRRWlsENyRkWx2kl7uxa9EYQfWeWtM 1fRdLDdAFBvafervTi67r1HfIWrE9adbiCbUQ4oNbDBpdAX4741jKbdWbYptlDaC74cV mJVQ== X-Forwarded-Encrypted: i=1; AFNElJ/3BbSng7bc6V5xGyyfHLcVSumrJ+x/nNjz6UegYUC/UyvYp0i9wGCd6GX8F0xTrkNdz1LQDv9tUMRfOJ8=@vger.kernel.org X-Gm-Message-State: AOJu0Yz2NLDOniIoMJ7fQLBWS7kF45//27DbwJVutqvo1Ufleur/bB+N 6XRL/pzzLuZtCXS/s+6GqPKLjPB32fS8wxZzMJAeae3CYV/Wey/I3MReck7aMg== X-Gm-Gg: Acq92OEAiPCMHTqySzvrBr8JsIiMk1fO55bwpwNHkTrVWPwQwRMon/MrtUY7U5luaxP y54kHLdj/2WXgDtQDnNbyGli49rtxaA+aEFO+kjVz+Jij6coBO+czqMCz1McFiMkqm9c9akc54s 0+3Qyc7xIUvyzMMQFNhefb+gOQTIn4PXCfkHKbiYNzxu8ZvbRR0bzBk4qQg8N9SvT9lbMKhfBZP i8Hr+nSBPd2TbQmPQC1Jc+XLk09mP610iz8kA91GJ9rHKd6fD4jPAUICNzqjPhtnL61ZRqChOyh ErsmPQrHfspIi5Fv98zOZYx6XK2/AclZBAzikUM1GlpPob961lQMffBPtPTqNCv627nXt0nw0Vd HnXKSf26J4xJZRPBbHB39qMVbseXcfREMeAUXE0OxstmcToc/Bu73mwPDpSbRG7HYZs7Eqy9vlg 7hdNnbLRmyBRKvAuvg7KnI9zoWX9vgNAjrIvZ4nCviVl2PoN9UZ20rTpT9kw== X-Received: by 2002:a17:903:3887:b0:2b9:6453:389a with SMTP id d9443c01a7336-2ba7928595bmr126945125ad.8.1778236766474; Fri, 08 May 2026 03:39:26 -0700 (PDT) Received: from phuc-desktop.. ([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2baf1d27109sm18309345ad.1.2026.05.08.03.39.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2026 03:39:26 -0700 (PDT) From: phucduc.bui@gmail.com To: peter.ujfalusi@gmail.com, broonie@kernel.org Cc: lgirdwood@gmail.com, perex@perex.cz, tiwai@suse.com, jarkko.nikula@bitmer.com, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, bui duc phuc Subject: [PATCH 7/7] ASoC: ti: omap-mcbsp: Simplify lock and resource handling Date: Fri, 8 May 2026 17:38:37 +0700 Message-ID: <20260508103837.138142-8-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260508103837.138142-1-phucduc.bui@gmail.com> References: <20260508103837.138142-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc Convert spinlock protected sections to guard()/scoped_guard() helpers and simplify the cleanup paths, including the reg_cache lifetime handling in omap_mcbsp_request(). No functional change intended. Signed-off-by: bui duc phuc --- sound/soc/ti/omap-mcbsp.c | 54 +++++++++++++++++---------------------- 1 file changed, 24 insertions(+), 30 deletions(-) diff --git a/sound/soc/ti/omap-mcbsp.c b/sound/soc/ti/omap-mcbsp.c index 411970399271..d82fef629867 100644 --- a/sound/soc/ti/omap-mcbsp.c +++ b/sound/soc/ti/omap-mcbsp.c @@ -290,23 +290,22 @@ static u16 omap_mcbsp_get_rx_delay(struct omap_mcbsp *mcbsp) static int omap_mcbsp_request(struct omap_mcbsp *mcbsp) { - void *reg_cache; + void *reg_cache __free(kfree) = kzalloc(mcbsp->reg_cache_size, GFP_KERNEL); int err; - reg_cache = kzalloc(mcbsp->reg_cache_size, GFP_KERNEL); if (!reg_cache) return -ENOMEM; - spin_lock(&mcbsp->lock); - if (!mcbsp->free) { - dev_err(mcbsp->dev, "McBSP%d is currently in use\n", mcbsp->id); - err = -EBUSY; - goto err_kfree; - } + scoped_guard(spinlock, &mcbsp->lock) { + if (!mcbsp->free) { + dev_err(mcbsp->dev, "McBSP%d is currently in use\n", mcbsp->id); + return -EBUSY; + } - mcbsp->free = false; - mcbsp->reg_cache = reg_cache; - spin_unlock(&mcbsp->lock); + mcbsp->free = false; + mcbsp->reg_cache = reg_cache; + reg_cache = NULL; + } if(mcbsp->pdata->ops && mcbsp->pdata->ops->request) mcbsp->pdata->ops->request(mcbsp->id - 1); @@ -352,12 +351,11 @@ static int omap_mcbsp_request(struct omap_mcbsp *mcbsp) if (mcbsp->pdata->has_wakeup) MCBSP_WRITE(mcbsp, WAKEUPEN, 0); - spin_lock(&mcbsp->lock); - mcbsp->free = true; - mcbsp->reg_cache = NULL; -err_kfree: - spin_unlock(&mcbsp->lock); - kfree(reg_cache); + scoped_guard(spinlock, &mcbsp->lock) { + reg_cache = mcbsp->reg_cache; + mcbsp->free = true; + mcbsp->reg_cache = NULL; + } return err; } @@ -395,13 +393,13 @@ static void omap_mcbsp_free(struct omap_mcbsp *mcbsp) if (!mcbsp_omap1()) omap2_mcbsp_set_clks_src(mcbsp, MCBSP_CLKS_PRCM_SRC); - spin_lock(&mcbsp->lock); - if (mcbsp->free) - dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id); - else - mcbsp->free = true; - mcbsp->reg_cache = NULL; - spin_unlock(&mcbsp->lock); + scoped_guard(spinlock, &mcbsp->lock) { + if (mcbsp->free) + dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id); + else + mcbsp->free = true; + mcbsp->reg_cache = NULL; + } kfree(reg_cache); } @@ -581,16 +579,12 @@ static ssize_t dma_op_mode_store(struct device *dev, if (i < 0) return i; - spin_lock_irq(&mcbsp->lock); + guard(spinlock_irq)(&mcbsp->lock); if (!mcbsp->free) { - size = -EBUSY; - goto unlock; + return -EBUSY; } mcbsp->dma_op_mode = i; -unlock: - spin_unlock_irq(&mcbsp->lock); - return size; } -- 2.43.0