From: Matthias Kaehlcke Date: Fri, 14 Dec 2007 00:15:33 +0000 (-0800) Subject: USB: testing driver: convert dev->sem to mutex X-Git-Tag: v2.6.25-rc1~1075^2~62 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=1cfab028afe5827433195c57b6f36d61a79beb50;p=linux-2.6-omap-h63xx.git USB: testing driver: convert dev->sem to mutex USB testing driver: convert semaphore dev->sem to the mutex API Signed-off-by: Matthias Kaehlcke Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 81755d06a41..e3851359d65 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -6,6 +6,7 @@ #include #include #include +#include #include @@ -64,7 +65,7 @@ struct usbtest_dev { int in_iso_pipe; int out_iso_pipe; struct usb_endpoint_descriptor *iso_in, *iso_out; - struct semaphore sem; + struct mutex lock; #define TBUF_SIZE 256 u8 *buf; @@ -1559,11 +1560,11 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) || param->sglen < 0 || param->vary < 0) return -EINVAL; - if (down_interruptible (&dev->sem)) + if (mutex_lock_interruptible(&dev->lock)) return -ERESTARTSYS; if (intf->dev.power.power_state.event != PM_EVENT_ON) { - up (&dev->sem); + mutex_unlock(&dev->lock); return -EHOSTUNREACH; } @@ -1575,7 +1576,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) int res; if (intf->altsetting->desc.bInterfaceNumber) { - up (&dev->sem); + mutex_unlock(&dev->lock); return -ENODEV; } res = set_altsetting (dev, dev->info->alt); @@ -1583,7 +1584,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) dev_err (&intf->dev, "set altsetting to %d failed, %d\n", dev->info->alt, res); - up (&dev->sem); + mutex_unlock(&dev->lock); return res; } } @@ -1856,7 +1857,7 @@ usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) param->duration.tv_usec += 1000 * 1000; param->duration.tv_sec -= 1; } - up (&dev->sem); + mutex_unlock(&dev->lock); return retval; } @@ -1906,7 +1907,7 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) return -ENOMEM; info = (struct usbtest_info *) id->driver_info; dev->info = info; - init_MUTEX (&dev->sem); + mutex_init(&dev->lock); dev->intf = intf; @@ -1991,7 +1992,7 @@ static void usbtest_disconnect (struct usb_interface *intf) { struct usbtest_dev *dev = usb_get_intfdata (intf); - down (&dev->sem); + mutex_lock(&dev->lock); usb_set_intfdata (intf, NULL); dev_dbg (&intf->dev, "disconnect\n");