From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f52.google.com (mail-pj1-f52.google.com [209.85.216.52]) (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 00C0340DFA5 for ; Sat, 25 Apr 2026 02:34:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777084481; cv=none; b=FO8fuiXXW6q1V9WXSSJFjjRtyoxX14X2R0jAoHgcyrYekgDUGgKKGcOwzjfnhltbcjIMFIEY3lYOz7L010cWYfizdvUaiyUwfiyxKNswqclNADe7WKFS2Z1BD1bOSGCS6SaL2Ie2p7l5F4TeDcvnODvhBkjCq6B1EC8jES7oUog= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777084481; c=relaxed/simple; bh=v9HVJ++03EQaHXhNmsfjEsq0XxSkjXdwD14D6W+Pb0k=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=kmmNnUN51sgBZ2W93GRbWXnOUOS1O5XwBP1/c7n9sBj1LlWe9HGuxswsXecUL6ArajTAy3zlu0J4pf6v4sndAwp4MdGIHHqa5yPXvgy6wk5LG85BzMEdaaQBViCOhHtC70Ly2p4DXN4NBT/XtWtyhKH7vtLGQfCNxDoLKi70FjY= 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=svYEN0ie; arc=none smtp.client-ip=209.85.216.52 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="svYEN0ie" Received: by mail-pj1-f52.google.com with SMTP id 98e67ed59e1d1-3614826eca4so7620517a91.1 for ; Fri, 24 Apr 2026 19:34:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1777084479; x=1777689279; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=EAbYB02520Q6y8pD6pZNW6/14rOdlhFt3EiI3dE8eTE=; b=svYEN0ieLEvjC+Iz8a815CSCcLSXRJxmgcZ+2vTmnBC5743zAtpqGwU6ADkatsNIqT a8OUR/LRkoeG26rWUoHIEt3MFHyQxBQPDs6jUpT3s0AWqvQp/XIwm8vjr06CylyupKt1 0v8hnk0avLKOV1QT7fzC3oj7YrgIjLw6Bp5PZGK8Bju1ef1votHSJLKdodPkqMiIF+RX ZmCN+pgWD/LkGhrImAcs9USHovNBMCIQpeznPFpwvZnbV4AQ9p4AjJdQphk61E/pf6we zFYSEyP0F9xBcY7bA/lStQojWbX+LY4O1uAtPDcLxmR5PwdOJaqoLSQvfF690nR61Mdn tbHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777084479; x=1777689279; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=EAbYB02520Q6y8pD6pZNW6/14rOdlhFt3EiI3dE8eTE=; b=DyDt6khXZS6jK721tHDk3Pu2jbC28HOnwJpfRAwv/GcXl0JyYZsNTIDTfUoRZI1iez oFaVvSkGfxOLuhPbbp0UPfqwlG/sseUDWOVSwHGUngejBqbiGgMLrGLRVdM11sP5y14e JVFIKoTss6mPkOEKvykVctm7kcvVFVtsTJoREe9wOKZh9NOR8cGwXUXVTNcRYD6UlkF8 5HbzKPprI4STh+2Np0WWjdeRkevJHi3mUQtuS8MnBnjU6hUtpMgB+DgLeO7PUtcCa8UJ 6derYRyXBQI3VVDTWMZfkbymRIHt+WuUgYWgW8nH87GhucPW/57npX/dQkmNOkn3+KJu 9EnQ== X-Forwarded-Encrypted: i=1; AFNElJ+YtY6zS6wJ7sNhHa5o/3mUzdVpo7v2DVP3f9LV33l9jqZN4jqOUJnbL2HDtB/r8/LAeYuj3t0x/hjIYyY=@vger.kernel.org X-Gm-Message-State: AOJu0YwNS4Kv6bw1qgZ7dwk3tBPm//blrwEVaqDKyHCiZ1CwYlsBwAni gWazTKm+2aLH4+Poj8Nbm1X3subB9JTDdqi2CUD5lPxmfhKY6uNweHoC X-Gm-Gg: AeBDieuMPsyExYa7B04A9pjcFr4XxYMlGJgw7+Tbzj22uWi3472ebLjmLZo9P1zq3Hh CauB7YMKTpU0hmhiXCqE/fDvrePmtaTcRcP+O6qeStp3TICmM6SJdpvay2N4D7iFK8Ul7Otep6u EOvOwXjGrac9R46MoyHIPQmoULdJIBrYAYkcueLu3h6eHzZMYtrbsOTQQKA9yjoX1EnPO5Vo5Ze SQLbmW3pYzHkYcW6MCj141d5BO7lYALFc8i8d6eFCg29weJT+4uuREz8nLgRcOlzs1czlwxINKJ p58nSKsHbcmalHOwORjCpdK7bczTlPDphcRYboV0upmn6kzIb4dJiQaQ0FIKHVyXDt6ypNSMMO8 +ZCZIrupiV5boy3wM2hC4kQbC57iQBRXvzpnbeF6cC6vP4cgutkFoM0rs6RngCGIeKTyrV137pg /C8sWfi4u/xFxvWYlP98V5MLn2PIzWYGhargxIpKIdPV2FZf9WezBR0MamL7pxt6zeKu55NuG8P qPscAAyWpuUbENLNMUwGlpIag== X-Received: by 2002:a17:90b:2fc8:b0:35d:a542:2dc4 with SMTP id 98e67ed59e1d1-3614047a7b8mr37015722a91.21.1777084479375; Fri, 24 Apr 2026 19:34:39 -0700 (PDT) Received: from ryzen ([2601:644:8000:5b5d::8bd]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3613fa91d31sm12977009a91.2.2026.04.24.19.34.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Apr 2026 19:34:38 -0700 (PDT) From: Rosen Penev To: linux-sound@vger.kernel.org Cc: Jaroslav Kysela , Takashi Iwai , linux-kernel@vger.kernel.org (open list) Subject: [PATCH] ALSA: hda: allocate nodes with tree Date: Fri, 24 Apr 2026 19:34:21 -0700 Message-ID: <20260425023421.476334-1-rosenp@gmail.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Use a flexible array member to combine allocations. Simplifies allocation and freeing. Signed-off-by: Rosen Penev --- sound/hda/core/sysfs.c | 22 ++++------------------ 1 file changed, 4 insertions(+), 18 deletions(-) diff --git a/sound/hda/core/sysfs.c b/sound/hda/core/sysfs.c index 3e102538e058..f14ce1203a9f 100644 --- a/sound/hda/core/sysfs.c +++ b/sound/hda/core/sysfs.c @@ -13,7 +13,7 @@ struct hdac_widget_tree { struct kobject *root; struct kobject *afg; - struct kobject **nodes; + struct kobject *nodes[]; }; #define CODEC_ATTR(type) \ @@ -325,11 +325,8 @@ static void widget_tree_free(struct hdac_device *codec) if (!tree) return; free_widget_node(tree->afg, &widget_afg_group); - if (tree->nodes) { - for (p = tree->nodes; *p; p++) - free_widget_node(*p, &widget_node_group); - kfree(tree->nodes); - } + for (p = tree->nodes; *p; p++) + free_widget_node(*p, &widget_node_group); kobject_put(tree->root); kfree(tree); codec->widgets = NULL; @@ -366,7 +363,7 @@ static int widget_tree_create(struct hdac_device *codec) int i, err; hda_nid_t nid; - tree = codec->widgets = kzalloc_obj(*tree); + tree = codec->widgets = kzalloc_flex(*tree, nodes, codec->num_nodes + 1); if (!tree) return -ENOMEM; @@ -374,10 +371,6 @@ static int widget_tree_create(struct hdac_device *codec) if (!tree->root) return -ENOMEM; - tree->nodes = kzalloc_objs(*tree->nodes, codec->num_nodes + 1); - if (!tree->nodes) - return -ENOMEM; - for (i = 0, nid = codec->start_nid; i < codec->num_nodes; i++, nid++) { err = add_widget_node(tree->root, nid, &widget_node_group, &tree->nodes[i]); @@ -435,12 +428,6 @@ int hda_widget_sysfs_reinit(struct hdac_device *codec, if (!tree) return -ENOMEM; - tree->nodes = kzalloc_objs(*tree->nodes, num_nodes + 1); - if (!tree->nodes) { - kfree(tree); - return -ENOMEM; - } - /* prune non-existing nodes */ for (i = 0, nid = codec->start_nid; i < codec->num_nodes; i++, nid++) { if (nid < start_nid || nid >= end_nid) @@ -459,7 +446,6 @@ int hda_widget_sysfs_reinit(struct hdac_device *codec, } /* replace with the new tree */ - kfree(codec->widgets->nodes); kfree(codec->widgets); codec->widgets = tree; -- 2.54.0