From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9FC42183CA6; Mon, 12 Aug 2024 16:19:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723479552; cv=none; b=rHk8BWLTT5kNdF62cOHHSK4xXfLA54IRHdDGzkWnWaTqVR9qV/4fbiXUrVQxm+Psq72BfTbKdxWSns1DrabW91X41v662rJpvOuyuvGGI7UiERQcipBCBuObM4p3MjJhB/PjARQEg//xwyb12mM6P5rob091RhlxKkJXX2nWuFg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723479552; c=relaxed/simple; bh=JZL9PG9rBOHQH7exup4JoqmhgOVG/MLJRkPlq7oEkL4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=coChHTJjzNxZpZrR9PTxBpZiaGkqaHOUkoBTBf/LWK+TlP7RL6+z4T3gItkxn6O6BS4Iz0HtedEh0/TxlVUXreOXi9b33TdBWf8y0RaYnrCNw5ohoWcvc1uFOKq7zkaWns4+Hpgg2LdHKLjUER0azB3qrX1awLlMdvY2Rk6iCt8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TUcDTVwk; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="TUcDTVwk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12D78C32782; Mon, 12 Aug 2024 16:19:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723479552; bh=JZL9PG9rBOHQH7exup4JoqmhgOVG/MLJRkPlq7oEkL4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TUcDTVwk8ncuFXjq53ZfQCrrOcxVf8oy4tuFoX/GGUE+4p6wFAdOSJ1m9aHgbfnsr VA4PNMfiTAg36aMe9oRW1sTrLC8TnHkzh5ROpWRxtA9Gqd90yTzTEJeW/bO1oO57kE utGAZadBODudH+uBEwXB+sZ7Zy1lisG1hVZV1u2g= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chris Wulff Subject: [PATCH 6.6 122/189] usb: gadget: u_audio: Check return codes from usb_ep_enable and config_ep_by_speed. Date: Mon, 12 Aug 2024 18:02:58 +0200 Message-ID: <20240812160136.841581901@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240812160132.135168257@linuxfoundation.org> References: <20240812160132.135168257@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org 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: Chris Wulff commit 76a7bfc445b8e9893c091e24ccfd4f51dfdc0a70 upstream. These functions can fail if descriptors are malformed, or missing, for the selected USB speed. Fixes: eb9fecb9e69b ("usb: gadget: f_uac2: split out audio core") Fixes: 24f779dac8f3 ("usb: gadget: f_uac2/u_audio: add feedback endpoint support") Cc: stable@vger.kernel.org Signed-off-by: Chris Wulff Link: https://lore.kernel.org/r/20240721192314.3532697-2-crwulff@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/u_audio.c | 42 +++++++++++++++++++++++++++------- 1 file changed, 34 insertions(+), 8 deletions(-) --- a/drivers/usb/gadget/function/u_audio.c +++ b/drivers/usb/gadget/function/u_audio.c @@ -592,16 +592,25 @@ int u_audio_start_capture(struct g_audio struct usb_ep *ep, *ep_fback; struct uac_rtd_params *prm; struct uac_params *params = &audio_dev->params; - int req_len, i; + int req_len, i, ret; prm = &uac->c_prm; dev_dbg(dev, "start capture with rate %d\n", prm->srate); ep = audio_dev->out_ep; - config_ep_by_speed(gadget, &audio_dev->func, ep); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed for out_ep failed (%d)\n", ret); + return ret; + } + req_len = ep->maxpacket; prm->ep_enabled = true; - usb_ep_enable(ep); + ret = usb_ep_enable(ep); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for out_ep (%d)\n", ret); + return ret; + } for (i = 0; i < params->req_number; i++) { if (!prm->reqs[i]) { @@ -629,9 +638,18 @@ int u_audio_start_capture(struct g_audio return 0; /* Setup feedback endpoint */ - config_ep_by_speed(gadget, &audio_dev->func, ep_fback); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep_fback); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed in_ep_fback failed (%d)\n", ret); + return ret; // TODO: Clean up out_ep + } + prm->fb_ep_enabled = true; - usb_ep_enable(ep_fback); + ret = usb_ep_enable(ep_fback); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for in_ep_fback (%d)\n", ret); + return ret; // TODO: Clean up out_ep + } req_len = ep_fback->maxpacket; req_fback = usb_ep_alloc_request(ep_fback, GFP_ATOMIC); @@ -687,13 +705,17 @@ int u_audio_start_playback(struct g_audi struct uac_params *params = &audio_dev->params; unsigned int factor; const struct usb_endpoint_descriptor *ep_desc; - int req_len, i; + int req_len, i, ret; unsigned int p_pktsize; prm = &uac->p_prm; dev_dbg(dev, "start playback with rate %d\n", prm->srate); ep = audio_dev->in_ep; - config_ep_by_speed(gadget, &audio_dev->func, ep); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed for in_ep failed (%d)\n", ret); + return ret; + } ep_desc = ep->desc; /* @@ -720,7 +742,11 @@ int u_audio_start_playback(struct g_audi uac->p_residue_mil = 0; prm->ep_enabled = true; - usb_ep_enable(ep); + ret = usb_ep_enable(ep); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for in_ep (%d)\n", ret); + return ret; + } for (i = 0; i < params->req_number; i++) { if (!prm->reqs[i]) {