diff options
Diffstat (limited to 'sound/usb/line6/driver.c')
| -rw-r--r-- | sound/usb/line6/driver.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c index b67617b68e50..e9eb5c74d6c7 100644 --- a/sound/usb/line6/driver.c +++ b/sound/usb/line6/driver.c @@ -2,7 +2,7 @@ /* * Line 6 Linux USB driver * - * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + * Copyright (C) 2004-2010 Markus Grabner (line6@grabner-graz.at) */ #include <linux/kernel.h> @@ -20,7 +20,7 @@ #include "midi.h" #include "playback.h" -#define DRIVER_AUTHOR "Markus Grabner <grabner@icg.tugraz.at>" +#define DRIVER_AUTHOR "Markus Grabner <line6@grabner-graz.at>" #define DRIVER_DESC "Line 6 USB Driver" /* @@ -202,7 +202,7 @@ int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer, struct urb *urb; /* create message: */ - msg = kmalloc(sizeof(struct message), GFP_ATOMIC); + msg = kzalloc(sizeof(struct message), GFP_ATOMIC); if (msg == NULL) return -ENOMEM; @@ -286,12 +286,14 @@ static void line6_data_received(struct urb *urb) { struct usb_line6 *line6 = (struct usb_line6 *)urb->context; struct midi_buffer *mb = &line6->line6midi->midibuf_in; + unsigned long flags; int done; if (urb->status == -ESHUTDOWN) return; if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) { + spin_lock_irqsave(&line6->line6midi->lock, flags); done = line6_midibuf_write(mb, urb->transfer_buffer, urb->actual_length); @@ -300,12 +302,15 @@ static void line6_data_received(struct urb *urb) dev_dbg(line6->ifcdev, "%d %d buffer overflow - message skipped\n", done, urb->actual_length); } + spin_unlock_irqrestore(&line6->line6midi->lock, flags); for (;;) { + spin_lock_irqsave(&line6->line6midi->lock, flags); done = line6_midibuf_read(mb, line6->buffer_message, LINE6_MIDI_MESSAGE_MAXLEN, LINE6_MIDIBUF_READ_RX); + spin_unlock_irqrestore(&line6->line6midi->lock, flags); if (done <= 0) break; @@ -688,7 +693,7 @@ static int line6_init_cap_control(struct usb_line6 *line6) int ret; /* initialize USB buffers: */ - line6->buffer_listen = kmalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL); + line6->buffer_listen = kzalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL); if (!line6->buffer_listen) return -ENOMEM; @@ -697,7 +702,7 @@ static int line6_init_cap_control(struct usb_line6 *line6) return -ENOMEM; if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) { - line6->buffer_message = kmalloc(LINE6_MIDI_MESSAGE_MAXLEN, GFP_KERNEL); + line6->buffer_message = kzalloc(LINE6_MIDI_MESSAGE_MAXLEN, GFP_KERNEL); if (!line6->buffer_message) return -ENOMEM; |