diff options
| -rw-r--r-- | drivers/staging/comedi/comedi_fops.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index a480b6ee5770..f67b12a7b847 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -580,11 +580,10 @@ static int do_devinfo_ioctl(struct comedi_device *dev, struct comedi_devinfo __user *arg, struct file *file) { - struct comedi_devinfo devinfo; const unsigned minor = iminor(file->f_dentry->d_inode); struct comedi_file_info *info = comedi_file_info_from_minor(minor); - struct comedi_subdevice *read_subdev = comedi_read_subdevice(info); - struct comedi_subdevice *write_subdev = comedi_write_subdevice(info); + struct comedi_subdevice *s; + struct comedi_devinfo devinfo; memset(&devinfo, 0, sizeof(devinfo)); @@ -594,13 +593,15 @@ static int do_devinfo_ioctl(struct comedi_device *dev, strlcpy(devinfo.driver_name, dev->driver->driver_name, COMEDI_NAMELEN); strlcpy(devinfo.board_name, dev->board_name, COMEDI_NAMELEN); - if (read_subdev) - devinfo.read_subdevice = read_subdev - dev->subdevices; + s = comedi_read_subdevice(info); + if (s) + devinfo.read_subdevice = s - dev->subdevices; else devinfo.read_subdevice = -1; - if (write_subdev) - devinfo.write_subdevice = write_subdev - dev->subdevices; + s = comedi_write_subdevice(info); + if (s) + devinfo.write_subdevice = s - dev->subdevices; else devinfo.write_subdevice = -1; |