diff options
Diffstat (limited to 'drivers/usb/gadget/printer.c')
| -rw-r--r-- | drivers/usb/gadget/printer.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 4c3ac5c42237..2fc8636316c5 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -25,7 +25,7 @@ #include <linux/ioport.h> #include <linux/sched.h> #include <linux/slab.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/errno.h> #include <linux/init.h> #include <linux/timer.h> @@ -70,6 +70,7 @@ #define DRIVER_DESC "Printer Gadget" #define DRIVER_VERSION "2007 OCT 06" +static DEFINE_MUTEX(printer_mutex); static const char shortname [] = "printer"; static const char driver_desc [] = DRIVER_DESC; @@ -476,7 +477,7 @@ printer_open(struct inode *inode, struct file *fd) unsigned long flags; int ret = -EBUSY; - lock_kernel(); + mutex_lock(&printer_mutex); dev = container_of(inode->i_cdev, struct printer_dev, printer_cdev); spin_lock_irqsave(&dev->lock, flags); @@ -492,7 +493,7 @@ printer_open(struct inode *inode, struct file *fd) spin_unlock_irqrestore(&dev->lock, flags); DBG(dev, "printer_open returned %x\n", ret); - unlock_kernel(); + mutex_unlock(&printer_mutex); return ret; } @@ -883,7 +884,8 @@ static const struct file_operations printer_io_operations = { .fsync = printer_fsync, .poll = printer_poll, .unlocked_ioctl = printer_ioctl, - .release = printer_close + .release = printer_close, + .llseek = noop_llseek, }; /*-------------------------------------------------------------------------*/ @@ -1542,7 +1544,6 @@ static struct usb_gadget_driver printer_driver = { .speed = DEVSPEED, .function = (char *) driver_desc, - .bind = printer_bind, .unbind = printer_unbind, .setup = printer_setup, @@ -1578,11 +1579,11 @@ init(void) return status; } - status = usb_gadget_register_driver(&printer_driver); + status = usb_gadget_probe_driver(&printer_driver, printer_bind); if (status) { class_destroy(usb_gadget_class); unregister_chrdev_region(g_printer_devno, 1); - DBG(dev, "usb_gadget_register_driver %x\n", status); + DBG(dev, "usb_gadget_probe_driver %x\n", status); } return status; |