diff options
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/line6/driver.c | 47 |
1 files changed, 17 insertions, 30 deletions
diff --git a/drivers/staging/line6/driver.c b/drivers/staging/line6/driver.c index 312905afe5e6..351e8606db3d 100644 --- a/drivers/staging/line6/driver.c +++ b/drivers/staging/line6/driver.c @@ -92,15 +92,10 @@ const unsigned char line6_midi_id[] = { Code to request version of POD, Variax interface (and maybe other devices). */ -static const char line6_request_version0[] = { +static const char line6_request_version[] = { 0xf0, 0x7e, 0x7f, 0x06, 0x01, 0xf7 }; -/* - Copy of version request code with GFP_KERNEL flag for use in URB. -*/ -static const char *line6_request_version; - struct usb_line6 *line6_devices[LINE6_MAX_DEVICES]; /** @@ -336,8 +331,21 @@ int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer, */ int line6_version_request_async(struct usb_line6 *line6) { - return line6_send_raw_message_async(line6, line6_request_version, - sizeof(line6_request_version0)); + char *buffer; + int retval; + + buffer = kmalloc(sizeof(line6_request_version), GFP_ATOMIC); + if (buffer == NULL) { + dev_err(line6->ifcdev, "Out of memory"); + return -ENOMEM; + } + + memcpy(buffer, line6_request_version, sizeof(line6_request_version)); + + retval = line6_send_raw_message_async(line6, buffer, + sizeof(line6_request_version)); + kfree(buffer); + return retval; } /* @@ -1297,29 +1305,9 @@ static struct usb_driver line6_driver = { */ static int __init line6_init(void) { - int retval; - printk(KERN_INFO "%s driver version %s\n", DRIVER_NAME, DRIVER_VERSION); - retval = usb_register(&line6_driver); - - if (retval) { - err("usb_register failed. Error number %d", retval); - return retval; - } - - line6_request_version = kmalloc(sizeof(line6_request_version0), - GFP_KERNEL); - - if (line6_request_version == NULL) { - err("Out of memory"); - return -ENOMEM; - } - - memcpy((char *)line6_request_version, line6_request_version0, - sizeof(line6_request_version0)); - - return retval; + return usb_register(&line6_driver); } /* @@ -1347,7 +1335,6 @@ static void __exit line6_exit(void) } usb_deregister(&line6_driver); - kfree(line6_request_version); } module_init(line6_init); |