diff options
Diffstat (limited to 'sound/usb/6fire/comm.c')
| -rw-r--r-- | sound/usb/6fire/comm.c | 50 |
1 files changed, 37 insertions, 13 deletions
diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c index 9e6e3ffd86bb..49629d4bb327 100644 --- a/sound/usb/6fire/comm.c +++ b/sound/usb/6fire/comm.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Linux driver for TerraTec DMX 6Fire USB * @@ -6,11 +7,6 @@ * Author: Torsten Schenk <torsten.schenk@zoho.com> * Created: Jan 01, 2011 * Copyright: (C) Torsten Schenk - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #include "comm.h" @@ -51,7 +47,7 @@ static void usb6fire_comm_receiver_handler(struct urb *urb) urb->status = 0; urb->actual_length = 0; if (usb_submit_urb(urb, GFP_ATOMIC) < 0) - snd_printk(KERN_WARNING PREFIX + dev_warn(&urb->dev->dev, "comm data receiver aborted.\n"); } } @@ -99,7 +95,7 @@ static int usb6fire_comm_send_buffer(u8 *buffer, struct usb_device *dev) int actual_len; ret = usb_interrupt_msg(dev, usb_sndintpipe(dev, COMM_EP), - buffer, buffer[1] + 2, &actual_len, HZ); + buffer, buffer[1] + 2, &actual_len, 1000); if (ret < 0) return ret; else if (actual_len != buffer[1] + 2) @@ -110,19 +106,37 @@ static int usb6fire_comm_send_buffer(u8 *buffer, struct usb_device *dev) static int usb6fire_comm_write8(struct comm_runtime *rt, u8 request, u8 reg, u8 value) { - u8 buffer[13]; /* 13: maximum length of message */ + u8 *buffer; + int ret; + + /* 13: maximum length of message */ + buffer = kmalloc(13, GFP_KERNEL); + if (!buffer) + return -ENOMEM; usb6fire_comm_init_buffer(buffer, 0x00, request, reg, value, 0x00); - return usb6fire_comm_send_buffer(buffer, rt->chip->dev); + ret = usb6fire_comm_send_buffer(buffer, rt->chip->dev); + + kfree(buffer); + return ret; } static int usb6fire_comm_write16(struct comm_runtime *rt, u8 request, u8 reg, u8 vl, u8 vh) { - u8 buffer[13]; /* 13: maximum length of message */ + u8 *buffer; + int ret; + + /* 13: maximum length of message */ + buffer = kmalloc(13, GFP_KERNEL); + if (!buffer) + return -ENOMEM; usb6fire_comm_init_buffer(buffer, 0x00, request, reg, vl, vh); - return usb6fire_comm_send_buffer(buffer, rt->chip->dev); + ret = usb6fire_comm_send_buffer(buffer, rt->chip->dev); + + kfree(buffer); + return ret; } int usb6fire_comm_init(struct sfire_chip *chip) @@ -135,6 +149,12 @@ int usb6fire_comm_init(struct sfire_chip *chip) if (!rt) return -ENOMEM; + rt->receiver_buffer = kzalloc(COMM_RECEIVER_BUFSIZE, GFP_KERNEL); + if (!rt->receiver_buffer) { + kfree(rt); + return -ENOMEM; + } + urb = &rt->receiver; rt->serial = 1; rt->chip = chip; @@ -153,8 +173,9 @@ int usb6fire_comm_init(struct sfire_chip *chip) urb->interval = 1; ret = usb_submit_urb(urb, GFP_KERNEL); if (ret < 0) { + kfree(rt->receiver_buffer); kfree(rt); - snd_printk(KERN_ERR PREFIX "cannot create comm data receiver."); + dev_err(&chip->dev->dev, "cannot create comm data receiver."); return ret; } chip->comm = rt; @@ -171,6 +192,9 @@ void usb6fire_comm_abort(struct sfire_chip *chip) void usb6fire_comm_destroy(struct sfire_chip *chip) { - kfree(chip->comm); + struct comm_runtime *rt = chip->comm; + + kfree(rt->receiver_buffer); + kfree(rt); chip->comm = NULL; } |