diff options
Diffstat (limited to 'drivers/net/wan/cosa.c')
| -rw-r--r-- | drivers/net/wan/cosa.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index e2c33c06190..b36bf96eb50 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -297,8 +297,8 @@ static ssize_t cosa_write(struct file *file, static unsigned int cosa_poll(struct file *file, poll_table *poll); static int cosa_open(struct inode *inode, struct file *file); static int cosa_release(struct inode *inode, struct file *file); -static int cosa_chardev_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); +static long cosa_chardev_ioctl(struct file *file, unsigned int cmd, + unsigned long arg); #ifdef COSA_FASYNC_WORKING static int cosa_fasync(struct inode *inode, struct file *file, int on); #endif @@ -309,7 +309,7 @@ static const struct file_operations cosa_fops = { .read = cosa_read, .write = cosa_write, .poll = cosa_poll, - .ioctl = cosa_chardev_ioctl, + .unlocked_ioctl = cosa_chardev_ioctl, .open = cosa_open, .release = cosa_release, #ifdef COSA_FASYNC_WORKING @@ -907,6 +907,7 @@ static ssize_t cosa_write(struct file *file, current->state = TASK_RUNNING; chan->tx_status = 1; spin_unlock_irqrestore(&cosa->lock, flags); + up(&chan->wsem); return -ERESTARTSYS; } } @@ -1204,12 +1205,18 @@ static int cosa_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return hdlc_ioctl(dev, ifr, cmd); } -static int cosa_chardev_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long cosa_chardev_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { struct channel_data *channel = file->private_data; - struct cosa_data *cosa = channel->cosa; - return cosa_ioctl_common(cosa, channel, cmd, arg); + struct cosa_data *cosa; + long ret; + + lock_kernel(); + cosa = channel->cosa; + ret = cosa_ioctl_common(cosa, channel, cmd, arg); + unlock_kernel(); + return ret; } |