diff options
Diffstat (limited to 'drivers/hid/hidraw.c')
| -rw-r--r-- | drivers/hid/hidraw.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 7685ae6808c4..732449628971 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c | |||
| @@ -208,7 +208,7 @@ static int hidraw_release(struct inode * inode, struct file * file) | |||
| 208 | 208 | ||
| 209 | list_del(&list->node); | 209 | list_del(&list->node); |
| 210 | dev = hidraw_table[minor]; | 210 | dev = hidraw_table[minor]; |
| 211 | if (!dev->open--) { | 211 | if (!--dev->open) { |
| 212 | if (list->hidraw->exist) | 212 | if (list->hidraw->exist) |
| 213 | dev->hid->ll_driver->close(dev->hid); | 213 | dev->hid->ll_driver->close(dev->hid); |
| 214 | else | 214 | else |
| @@ -265,6 +265,34 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, | |||
| 265 | break; | 265 | break; |
| 266 | } | 266 | } |
| 267 | default: | 267 | default: |
| 268 | { | ||
| 269 | struct hid_device *hid = dev->hid; | ||
| 270 | if (_IOC_TYPE(cmd) != 'H' || _IOC_DIR(cmd) != _IOC_READ) | ||
| 271 | return -EINVAL; | ||
| 272 | |||
| 273 | if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWNAME(0))) { | ||
| 274 | int len; | ||
| 275 | if (!hid->name) | ||
| 276 | return 0; | ||
| 277 | len = strlen(hid->name) + 1; | ||
| 278 | if (len > _IOC_SIZE(cmd)) | ||
| 279 | len = _IOC_SIZE(cmd); | ||
| 280 | return copy_to_user(user_arg, hid->name, len) ? | ||
| 281 | -EFAULT : len; | ||
| 282 | } | ||
| 283 | |||
| 284 | if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWPHYS(0))) { | ||
| 285 | int len; | ||
| 286 | if (!hid->phys) | ||
| 287 | return 0; | ||
| 288 | len = strlen(hid->phys) + 1; | ||
| 289 | if (len > _IOC_SIZE(cmd)) | ||
| 290 | len = _IOC_SIZE(cmd); | ||
| 291 | return copy_to_user(user_arg, hid->phys, len) ? | ||
| 292 | -EFAULT : len; | ||
| 293 | } | ||
| 294 | } | ||
| 295 | |||
| 268 | ret = -ENOTTY; | 296 | ret = -ENOTTY; |
| 269 | } | 297 | } |
| 270 | unlock_kernel(); | 298 | unlock_kernel(); |
| @@ -329,7 +357,7 @@ int hidraw_connect(struct hid_device *hid) | |||
| 329 | goto out; | 357 | goto out; |
| 330 | } | 358 | } |
| 331 | 359 | ||
| 332 | dev->dev = device_create(hidraw_class, NULL, MKDEV(hidraw_major, minor), | 360 | dev->dev = device_create(hidraw_class, &hid->dev, MKDEV(hidraw_major, minor), |
| 333 | NULL, "%s%d", "hidraw", minor); | 361 | NULL, "%s%d", "hidraw", minor); |
| 334 | 362 | ||
| 335 | if (IS_ERR(dev->dev)) { | 363 | if (IS_ERR(dev->dev)) { |
