From patchwork Mon Sep 14 15:37:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 11774441 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BD35792C for ; Mon, 14 Sep 2020 16:33:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DA46214F1 for ; Mon, 14 Sep 2020 16:33:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600101232; bh=CYH1CsDc34T5/TtGxDDRATTjQ8lmYfcbJULfT9sMhfA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=1WyZv6EQ7RwDP0NikmWMtgFSlIfs4YznKiHYlARNNxC4seG5sLwWcd0iR/GvW0N2f bw+lKwldG3mVhqDI0s487avJ80+9hKB1MJUS2oi8GNSnzvBIMkKjh6ot7kfBK8q+Ic ivif23qB4JlB6LJ3+uF3kT/RxOGA/hFm2jtvecTA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726470AbgINPo5 (ORCPT ); Mon, 14 Sep 2020 11:44:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:48034 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726031AbgINPiX (ORCPT ); Mon, 14 Sep 2020 11:38:23 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BB2BB21D1B; Mon, 14 Sep 2020 15:38:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600097894; bh=CYH1CsDc34T5/TtGxDDRATTjQ8lmYfcbJULfT9sMhfA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OO5CdqsX4I7wtBZYJAWDR7ATAHG4GgHsny6IA9UlBIgUXXkeKY6KUdkufxzkJgcD3 iJRCXa0q66paNHfIDTNMWgQoIMjfB1PP5gMUFsITSuCjjEd5Sqtq2rGsm3c79riJ1S GV3cRB75CKBRdjKtTTFjyutxxDcZ65xqetS/CeQQ= From: Greg Kroah-Hartman To: himadrispandya@gmail.com, dvyukov@google.com, linux-usb@vger.kernel.org Cc: perex@perex.cz, tiwai@suse.com, stern@rowland.harvard.ed, linux-kernel@vger.kernel.org, marcel@holtmann.org, johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, alsa-devel@alsa-project.org, Greg Kroah-Hartman , Alan Stern , "Rafael J. Wysocki" , Andy Shevchenko Subject: [PATCH v3 03/11] USB: core: message.c: use usb_control_msg_send() in a few places Date: Mon, 14 Sep 2020 17:37:48 +0200 Message-Id: <20200914153756.3412156-4-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200914153756.3412156-1-gregkh@linuxfoundation.org> References: <20200914153756.3412156-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org There are a few calls to usb_control_msg() that can be converted to use usb_control_msg_send() instead, so do that in order to make the error checking a bit simpler. Cc: Alan Stern Cc: "Rafael J. Wysocki" Reviewed-by: Andy Shevchenko Cc: linux-usb@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- v3: - Added Andy's Reviewed-by: v2: - no change from v1 drivers/usb/core/message.c | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 1dc53b12a26a..1580694e3b95 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1081,7 +1081,7 @@ int usb_set_isoch_delay(struct usb_device *dev) if (dev->speed < USB_SPEED_SUPER) return 0; - return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + return usb_control_msg_send(dev, 0, USB_REQ_SET_ISOCH_DELAY, USB_DIR_OUT | USB_TYPE_STANDARD | USB_RECIP_DEVICE, dev->hub_delay, 0, NULL, 0, @@ -1203,13 +1203,13 @@ int usb_clear_halt(struct usb_device *dev, int pipe) * (like some ibmcam model 1 units) seem to expect hosts to make * this request for iso endpoints, which can't halt! */ - result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), - USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, - USB_ENDPOINT_HALT, endp, NULL, 0, - USB_CTRL_SET_TIMEOUT); + result = usb_control_msg_send(dev, 0, + USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT, + USB_ENDPOINT_HALT, endp, NULL, 0, + USB_CTRL_SET_TIMEOUT); /* don't un-halt or force to DATA0 except on success */ - if (result < 0) + if (result) return result; /* NOTE: seems like Microsoft and Apple don't bother verifying @@ -1571,9 +1571,10 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate) if (dev->quirks & USB_QUIRK_NO_SET_INTF) ret = -EPIPE; else - ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), - USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, - alternate, interface, NULL, 0, 5000); + ret = usb_control_msg_send(dev, 0, + USB_REQ_SET_INTERFACE, + USB_RECIP_INTERFACE, alternate, + interface, NULL, 0, 5000); /* 9.4.10 says devices don't need this and are free to STALL the * request if the interface only has one alternate setting. @@ -1583,7 +1584,7 @@ int usb_set_interface(struct usb_device *dev, int interface, int alternate) "manual set_interface for iface %d, alt %d\n", interface, alternate); manual = 1; - } else if (ret < 0) { + } else if (ret) { /* Re-instate the old alt setting */ usb_hcd_alloc_bandwidth(dev, NULL, alt, iface->cur_altsetting); usb_enable_lpm(dev); @@ -1707,11 +1708,10 @@ int usb_reset_configuration(struct usb_device *dev) mutex_unlock(hcd->bandwidth_mutex); return retval; } - retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), - USB_REQ_SET_CONFIGURATION, 0, - config->desc.bConfigurationValue, 0, - NULL, 0, USB_CTRL_SET_TIMEOUT); - if (retval < 0) { + retval = usb_control_msg_send(dev, 0, USB_REQ_SET_CONFIGURATION, 0, + config->desc.bConfigurationValue, 0, + NULL, 0, USB_CTRL_SET_TIMEOUT); + if (retval) { usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL); usb_enable_lpm(dev); mutex_unlock(hcd->bandwidth_mutex); @@ -2096,10 +2096,10 @@ int usb_set_configuration(struct usb_device *dev, int configuration) } kfree(new_interfaces); - ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), - USB_REQ_SET_CONFIGURATION, 0, configuration, 0, - NULL, 0, USB_CTRL_SET_TIMEOUT); - if (ret < 0 && cp) { + ret = usb_control_msg_send(dev, 0, USB_REQ_SET_CONFIGURATION, 0, + configuration, 0, NULL, 0, + USB_CTRL_SET_TIMEOUT); + if (ret && cp) { /* * All the old state is gone, so what else can we do? * The device is probably useless now anyway.