From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BA43F4562A0; Thu, 30 Jul 2026 16:18:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785428321; cv=none; b=cPY19k59JAb7R3KgCluxMLmfNA/jg0WkukQJH6lMuYJKi/EY5qYUIy2QACsDBatiFqHsgRJJw4zueT9LU0BG5LlVB+25PuZO+o96OT/J6uEQfM9N+ANyT4RVkN14+ca1aMOzNzm6mBfK1aY/FcwbeYc220Lm66/CVqDcJyacaVA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785428321; c=relaxed/simple; bh=UxwFN4zgAK4tPdXq9izqN6Rv7JuzB+Kjz/f0lQ3zb2Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ABvEwG4OZ6JVQUQ61hmKxDybSdywPiQj6AKFnr30FUwD+6Q5DoX1ztPlNqW5pYmj0FfycvEGd0u/OTSaQ0568qvlPkvgFSSwStkL3SfUzYL5TiTDCxg7D7VAS/AIlIWSdPVeFzKDNMe30WhpexllMG3bWknATTdCS41dvqrb/Dg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=NbWIXST9; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="NbWIXST9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBB331F000E9; Thu, 30 Jul 2026 16:18:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1785428319; bh=S6HQSzIugiTfbDDmy3D/ySyfcfy2NTYJ+E62XxbTLvQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=NbWIXST95CXni2W6WHrBXppF1B7Dg1+lpCoMudo/7j7vlw9x176k0+3IbNZE7pVKu 87U0TBXQX2bvkH+p7iKTVJ/FiK+EaTCAytnx3BWeNnpdPVqBWIXNnV7X2DBva23XgN WF2+9q9sBJaWRLLI0U1nDtKnczx03IUJSYF+h7KY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Julien Massot , AngeloGioacchino Del Regno , Mark Brown Subject: [PATCH 6.6 481/484] ASoC: mediatek: mt8195: Set ETDM1/2 IN/OUT to COMP_DUMMY() Date: Thu, 30 Jul 2026 16:16:18 +0200 Message-ID: <20260730141433.943642176@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260730141423.392222816@linuxfoundation.org> References: <20260730141423.392222816@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Julien Massot commit 7af317f7faaab09d5a78f24605057d11f5955115 upstream. ETDM2_IN_BE and ETDM1_OUT_BE are defined as COMP_EMPTY(), in the case the codec dai_name will be null. Avoid a crash if the device tree is not assigning a codec to these links. [ 1.179936] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 1.181065] Mem abort info: [ 1.181420] ESR = 0x0000000096000004 [ 1.181892] EC = 0x25: DABT (current EL), IL = 32 bits [ 1.182576] SET = 0, FnV = 0 [ 1.182964] EA = 0, S1PTW = 0 [ 1.183367] FSC = 0x04: level 0 translation fault [ 1.183983] Data abort info: [ 1.184406] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 1.185097] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 1.185766] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 1.186439] [0000000000000000] user address but active_mm is swapper [ 1.187239] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 1.188029] Modules linked in: [ 1.188420] CPU: 7 UID: 0 PID: 70 Comm: kworker/u32:1 Not tainted 6.14.0-rc4-next-20250226+ #85 [ 1.189515] Hardware name: Radxa NIO 12L (DT) [ 1.190065] Workqueue: events_unbound deferred_probe_work_func [ 1.190808] pstate: 40400009 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1.191683] pc : __pi_strcmp+0x24/0x140 [ 1.192170] lr : mt8195_mt6359_soc_card_probe+0x224/0x7b0 [ 1.192854] sp : ffff800083473970 [ 1.193271] x29: ffff800083473a10 x28: 0000000000001008 x27: 0000000000000002 [ 1.194168] x26: ffff800082408960 x25: ffff800082417db0 x24: ffff800082417d88 [ 1.195065] x23: 000000000000001e x22: ffff800082dbf480 x21: ffff800082dc07b8 [ 1.195961] x20: 0000000000000000 x19: 0000000000000013 x18: 00000000ffffffff [ 1.196858] x17: 000000040044ffff x16: 005000f2b5503510 x15: 0000000000000006 [ 1.197755] x14: ffff800082407af0 x13: 6e6f69737265766e x12: 692d6b636f6c6374 [ 1.198651] x11: 0000000000000002 x10: ffff80008240b920 x9 : 0000000000000018 [ 1.199547] x8 : 0101010101010101 x7 : 0000000000000000 x6 : 0000000000000000 [ 1.200443] x5 : 0000000000000000 x4 : 8080808080000000 x3 : 303933383978616d [ 1.201339] x2 : 0000000000000000 x1 : ffff80008240b920 x0 : 0000000000000000 [ 1.202236] Call trace: [ 1.202545] __pi_strcmp+0x24/0x140 (P) [ 1.203029] mtk_soundcard_common_probe+0x3bc/0x5b8 [ 1.203644] platform_probe+0x70/0xe8 [ 1.204106] really_probe+0xc8/0x3a0 [ 1.204556] __driver_probe_device+0x84/0x160 [ 1.205104] driver_probe_device+0x44/0x130 [ 1.205630] __device_attach_driver+0xc4/0x170 [ 1.206189] bus_for_each_drv+0x8c/0xf8 [ 1.206672] __device_attach+0xa8/0x1c8 [ 1.207155] device_initial_probe+0x1c/0x30 [ 1.207681] bus_probe_device+0xb0/0xc0 [ 1.208165] deferred_probe_work_func+0xa4/0x100 [ 1.208747] process_one_work+0x158/0x3e0 [ 1.209254] worker_thread+0x2c4/0x3e8 [ 1.209727] kthread+0x134/0x1f0 [ 1.210136] ret_from_fork+0x10/0x20 [ 1.210589] Code: 54000401 b50002c6 d503201f f86a6803 (f8408402) [ 1.211355] ---[ end trace 0000000000000000 ]--- Signed-off-by: Julien Massot Fixes: e70b8dd26711 ("ASoC: mediatek: mt8195: Remove afe-dai component and rework codec link") Reviewed-by: AngeloGioacchino Del Regno Link: https://patch.msgid.link/20250417-mt8395-audio-sof-v1-2-30587426e5dd@collabora.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/mediatek/mt8195/mt8195-mt6359.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/sound/soc/mediatek/mt8195/mt8195-mt6359.c +++ b/sound/soc/mediatek/mt8195/mt8195-mt6359.c @@ -934,12 +934,12 @@ SND_SOC_DAILINK_DEFS(ETDM1_IN_BE, SND_SOC_DAILINK_DEFS(ETDM2_IN_BE, DAILINK_COMP_ARRAY(COMP_CPU("ETDM2_IN")), - DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_DUMMY()), DAILINK_COMP_ARRAY(COMP_EMPTY())); SND_SOC_DAILINK_DEFS(ETDM1_OUT_BE, DAILINK_COMP_ARRAY(COMP_CPU("ETDM1_OUT")), - DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_DUMMY()), DAILINK_COMP_ARRAY(COMP_EMPTY())); SND_SOC_DAILINK_DEFS(ETDM2_OUT_BE,