diff options
-rw-r--r-- | drivers/hid/hidraw.c | 28 | ||||
-rw-r--r-- | include/linux/hidraw.h | 2 |
2 files changed, 30 insertions, 0 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 7685ae6808c4..975edd88a3db 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c | |||
@@ -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(); |
diff --git a/include/linux/hidraw.h b/include/linux/hidraw.h index dbb5c8c374f0..dd8d69269176 100644 --- a/include/linux/hidraw.h +++ b/include/linux/hidraw.h | |||
@@ -33,6 +33,8 @@ struct hidraw_devinfo { | |||
33 | #define HIDIOCGRDESCSIZE _IOR('H', 0x01, int) | 33 | #define HIDIOCGRDESCSIZE _IOR('H', 0x01, int) |
34 | #define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor) | 34 | #define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor) |
35 | #define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo) | 35 | #define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo) |
36 | #define HIDIOCGRAWNAME(len) _IOC(_IOC_READ, 'H', 0x04, len) | ||
37 | #define HIDIOCGRAWPHYS(len) _IOC(_IOC_READ, 'H', 0x05, len) | ||
36 | 38 | ||
37 | #define HIDRAW_FIRST_MINOR 0 | 39 | #define HIDRAW_FIRST_MINOR 0 |
38 | #define HIDRAW_MAX_DEVICES 64 | 40 | #define HIDRAW_MAX_DEVICES 64 |