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author | Takashi Iwai <tiwai@suse.de> | 2009-01-15 18:27:20 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2009-01-15 18:27:20 +0100 |
commit | c0106d72b8d71696dbe9dc80e2c77d4ac63f7531 (patch) | |
tree | ca96d2baecb0555e36219ed6968dc8e306e530ca /drivers/hid/hidraw.c | |
parent | 5852973c129cf7c7e6c229abb7250673fc2a50c9 (diff) | |
parent | eff317d0834ad1ff03f747f6bc2d76b9a9c95160 (diff) | |
download | talos-op-linux-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.tar.gz talos-op-linux-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.zip |
Merge branch 'topic/asoc' into next/asoc
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) list_del(&list->node); dev = hidraw_table[minor]; - if (!dev->open--) { + if (!--dev->open) { if (list->hidraw->exist) dev->hid->ll_driver->close(dev->hid); else @@ -265,6 +265,34 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, break; } default: + { + struct hid_device *hid = dev->hid; + if (_IOC_TYPE(cmd) != 'H' || _IOC_DIR(cmd) != _IOC_READ) + return -EINVAL; + + if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWNAME(0))) { + int len; + if (!hid->name) + return 0; + len = strlen(hid->name) + 1; + if (len > _IOC_SIZE(cmd)) + len = _IOC_SIZE(cmd); + return copy_to_user(user_arg, hid->name, len) ? + -EFAULT : len; + } + + if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWPHYS(0))) { + int len; + if (!hid->phys) + return 0; + len = strlen(hid->phys) + 1; + if (len > _IOC_SIZE(cmd)) + len = _IOC_SIZE(cmd); + return copy_to_user(user_arg, hid->phys, len) ? + -EFAULT : len; + } + } + ret = -ENOTTY; } unlock_kernel(); @@ -329,7 +357,7 @@ int hidraw_connect(struct hid_device *hid) goto out; } - dev->dev = device_create(hidraw_class, NULL, MKDEV(hidraw_major, minor), + dev->dev = device_create(hidraw_class, &hid->dev, MKDEV(hidraw_major, minor), NULL, "%s%d", "hidraw", minor); if (IS_ERR(dev->dev)) { |