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path: root/drivers/usb/media/stv680.c
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Diffstat (limited to 'drivers/usb/media/stv680.c')
-rw-r--r--drivers/usb/media/stv680.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/usb/media/stv680.c b/drivers/usb/media/stv680.c
index b497a6a0a206..b1a6be2958ed 100644
--- a/drivers/usb/media/stv680.c
+++ b/drivers/usb/media/stv680.c
@@ -67,6 +67,7 @@
#include <linux/errno.h>
#include <linux/videodev.h>
#include <linux/usb.h>
+#include <linux/mutex.h>
#include "stv680.h"
@@ -1258,22 +1259,22 @@ static int stv680_mmap (struct file *file, struct vm_area_struct *vma)
unsigned long size = vma->vm_end-vma->vm_start;
unsigned long page, pos;
- down (&stv680->lock);
+ mutex_lock(&stv680->lock);
if (stv680->udev == NULL) {
- up (&stv680->lock);
+ mutex_unlock(&stv680->lock);
return -EIO;
}
if (size > (((STV680_NUMFRAMES * stv680->maxframesize) + PAGE_SIZE - 1)
& ~(PAGE_SIZE - 1))) {
- up (&stv680->lock);
+ mutex_unlock(&stv680->lock);
return -EINVAL;
}
pos = (unsigned long) stv680->fbuf;
while (size > 0) {
page = vmalloc_to_pfn((void *)pos);
if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
- up (&stv680->lock);
+ mutex_unlock(&stv680->lock);
return -EAGAIN;
}
start += PAGE_SIZE;
@@ -1283,7 +1284,7 @@ static int stv680_mmap (struct file *file, struct vm_area_struct *vma)
else
size = 0;
}
- up (&stv680->lock);
+ mutex_unlock(&stv680->lock);
return 0;
}
@@ -1409,7 +1410,7 @@ static int stv680_probe (struct usb_interface *intf, const struct usb_device_id
memcpy (stv680->vdev->name, stv680->camera_name, strlen (stv680->camera_name));
init_waitqueue_head (&stv680->wq);
- init_MUTEX (&stv680->lock);
+ mutex_init (&stv680->lock);
wmb ();
if (video_register_device (stv680->vdev, VFL_TYPE_GRABBER, video_nr) == -1) {