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 B91E843B490; Tue, 21 Jul 2026 21:56:16 +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=1784670977; cv=none; b=hGsKg1vk7eGqEmq7GlVrhUHpJ4fWqQ2t3ghFgNNNMXCc+06dfElwaB9OopLt3iPrggW21xdcC/nqUGwOqxX2huZlsereTbqxdBe3BleBcDAGN2GPU9g6GdTcRnzmsnrVup0ZkgoOXQWCBYzmmK/dMWgZIbDU/hH9bEfNBTyj7E0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784670977; c=relaxed/simple; bh=sI2X0oXBAK2FoBnOvbngOrJqNiFvzLtMv1haySByMyY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Fr9cFKW32OJ/Dq3s+md6Gy5pMt1ryKyZ4jhlcHpC+ZQR10Jyyjxsj9+DGvDuQCFv/pgyRBxmeSJ4f2HJPgf+O6aQ8Ukjpl4eclHcBRyPTpKo8DOAch3sjXEzs0HcaKHRwlXjkrV4f4bq7fMfE/K4KH20zYXbzJaqgio+CWxP0FA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=dWFKdKdr; 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="dWFKdKdr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2BB371F000E9; Tue, 21 Jul 2026 21:56:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784670976; bh=4yssvuMt4dKcY6k29Kto8+SOzW1TSJZUSkI9ftU2Iuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=dWFKdKdrdv7MaK3xHCzNccvIHMqXR9F6zU3rWZjgr1vdDwIOOFLdmNBiIr9oWuRj9 MvSvUtJyUL8MbzE8pi1UPPu7P4YMdAYVCrPkQbGzdV3SdWGjAHiD/8z6YZMnlheaYJ Qjdnw1HCGnPdmbuYWApsEHsuj7hYxPRYKJwYFFJs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?C=C3=A1ssio=20Gabriel?= , Takashi Iwai Subject: [PATCH 5.15 071/843] ALSA: usb-audio: Propagate errors in scarlett_ctl_enum_put() Date: Tue, 21 Jul 2026 17:15:06 +0200 Message-ID: <20260721152407.586753317@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Cássio Gabriel commit 0f25cf1f02e3dba626791d949c759a48c0a44996 upstream. scarlett_ctl_enum_put() ignores the return value from snd_usb_set_cur_mix_value() and reports success whenever the requested enum value differs from the current one. If the SET_CUR request fails, the callback still returns success even though neither the hardware state nor the cached mixer value changed. Fixes: 76b188c4b370 ("ALSA: usb-audio: Scarlett mixer interface for 6i6, 18i6, 18i8 and 18i20") Cc: stable@vger.kernel.org Signed-off-by: Cássio Gabriel Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20260419-usb-write-error-propagation-v1-2-5a3bd4a673ae@gmail.com Signed-off-by: Greg Kroah-Hartman --- sound/usb/mixer_scarlett.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/sound/usb/mixer_scarlett.c +++ b/sound/usb/mixer_scarlett.c @@ -438,7 +438,9 @@ static int scarlett_ctl_enum_put(struct val = ucontrol->value.integer.value[0]; val = val + opt->start; if (val != oval) { - snd_usb_set_cur_mix_value(elem, 0, 0, val); + err = snd_usb_set_cur_mix_value(elem, 0, 0, val); + if (err < 0) + return err; return 1; } return 0;