Merge branch 'core/topology' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[pandora-kernel.git] / drivers / bluetooth / hci_vhci.c

diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index b71a5cc..d97700a 100644 (file)
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -28,6 +28,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
@@ -180,11 +181,6 @@ static inline ssize_t vhci_put_user(struct vhci_data *data,
        return total;
 }
 
-static loff_t vhci_llseek(struct file *file, loff_t offset, int origin)
-{
-       return -ESPIPE;
-}
-
 static ssize_t vhci_read(struct file *file,
                                char __user *buf, size_t count, loff_t *pos)
 {
@@ -268,9 +264,11 @@ static int vhci_open(struct inode *inode, struct file *file)
        skb_queue_head_init(&data->readq);
        init_waitqueue_head(&data->read_wait);
 
+       lock_kernel();
        hdev = hci_alloc_dev();
        if (!hdev) {
                kfree(data);
+               unlock_kernel();
                return -ENOMEM;
        }
 
@@ -291,10 +289,12 @@ static int vhci_open(struct inode *inode, struct file *file)
                BT_ERR("Can't register HCI device");
                kfree(data);
                hci_free_dev(hdev);
+               unlock_kernel();
                return -EBUSY;
        }
 
        file->private_data = data;
+       unlock_kernel();
 
        return nonseekable_open(inode, file);
 }
@@ -318,23 +318,25 @@ static int vhci_release(struct inode *inode, struct file *file)
 static int vhci_fasync(int fd, struct file *file, int on)
 {
        struct vhci_data *data = file->private_data;
-       int err;
+       int err = 0;
 
+       lock_kernel();
        err = fasync_helper(fd, file, on, &data->fasync);
        if (err < 0)
-               return err;
+               goto out;
 
        if (on)
                data->flags |= VHCI_FASYNC;
        else
                data->flags &= ~VHCI_FASYNC;
 
-       return 0;
+out:
+       unlock_kernel();
+       return err;
 }
 
 static const struct file_operations vhci_fops = {
        .owner          = THIS_MODULE,
-       .llseek         = vhci_llseek,
        .read           = vhci_read,
        .write          = vhci_write,
        .poll           = vhci_poll,