diff options
Diffstat (limited to 'sound/usb/6fire/comm.c')
| -rw-r--r-- | sound/usb/6fire/comm.c | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c index c994daa57af..161215d78d9 100644 --- a/sound/usb/6fire/comm.c +++ b/sound/usb/6fire/comm.c @@ -5,7 +5,6 @@ * * Author: Torsten Schenk <torsten.schenk@zoho.com> * Created: Jan 01, 2011 - * Version: 0.3.0 * Copyright: (C) Torsten Schenk * * This program is free software; you can redistribute it and/or modify @@ -52,7 +51,7 @@ 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"); } } @@ -111,31 +110,56 @@ 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 __devinit usb6fire_comm_init(struct sfire_chip *chip) +int usb6fire_comm_init(struct sfire_chip *chip) { struct comm_runtime *rt = kzalloc(sizeof(struct comm_runtime), GFP_KERNEL); - struct urb *urb = &rt->receiver; + struct urb *urb; int ret; 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; usb_init_urb(urb); @@ -153,8 +177,9 @@ int __devinit 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 +196,9 @@ 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; } |