diff options
Diffstat (limited to 'drivers/hid/usbhid/hiddev.c')
-rw-r--r-- | drivers/hid/usbhid/hiddev.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index 254a003af048..0a29c51114aa 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c | |||
@@ -266,13 +266,15 @@ static int hiddev_open(struct inode *inode, struct file *file) | |||
266 | { | 266 | { |
267 | struct hiddev_list *list; | 267 | struct hiddev_list *list; |
268 | struct usb_interface *intf; | 268 | struct usb_interface *intf; |
269 | struct hid_device *hid; | ||
269 | struct hiddev *hiddev; | 270 | struct hiddev *hiddev; |
270 | int res; | 271 | int res; |
271 | 272 | ||
272 | intf = usb_find_interface(&hiddev_driver, iminor(inode)); | 273 | intf = usb_find_interface(&hiddev_driver, iminor(inode)); |
273 | if (!intf) | 274 | if (!intf) |
274 | return -ENODEV; | 275 | return -ENODEV; |
275 | hiddev = usb_get_intfdata(intf); | 276 | hid = usb_get_intfdata(intf); |
277 | hiddev = hid->hiddev; | ||
276 | 278 | ||
277 | if (!(list = kzalloc(sizeof(struct hiddev_list), GFP_KERNEL))) | 279 | if (!(list = kzalloc(sizeof(struct hiddev_list), GFP_KERNEL))) |
278 | return -ENOMEM; | 280 | return -ENOMEM; |
@@ -587,7 +589,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |||
587 | struct hiddev_list *list = file->private_data; | 589 | struct hiddev_list *list = file->private_data; |
588 | struct hiddev *hiddev = list->hiddev; | 590 | struct hiddev *hiddev = list->hiddev; |
589 | struct hid_device *hid = hiddev->hid; | 591 | struct hid_device *hid = hiddev->hid; |
590 | struct usb_device *dev = hid_to_usb_dev(hid); | 592 | struct usb_device *dev; |
591 | struct hiddev_collection_info cinfo; | 593 | struct hiddev_collection_info cinfo; |
592 | struct hiddev_report_info rinfo; | 594 | struct hiddev_report_info rinfo; |
593 | struct hiddev_field_info finfo; | 595 | struct hiddev_field_info finfo; |
@@ -601,9 +603,11 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |||
601 | /* Called without BKL by compat methods so no BKL taken */ | 603 | /* Called without BKL by compat methods so no BKL taken */ |
602 | 604 | ||
603 | /* FIXME: Who or what stop this racing with a disconnect ?? */ | 605 | /* FIXME: Who or what stop this racing with a disconnect ?? */ |
604 | if (!hiddev->exist) | 606 | if (!hiddev->exist || !hid) |
605 | return -EIO; | 607 | return -EIO; |
606 | 608 | ||
609 | dev = hid_to_usb_dev(hid); | ||
610 | |||
607 | switch (cmd) { | 611 | switch (cmd) { |
608 | 612 | ||
609 | case HIDIOCGVERSION: | 613 | case HIDIOCGVERSION: |
@@ -888,7 +892,6 @@ int hiddev_connect(struct hid_device *hid, unsigned int force) | |||
888 | hid->hiddev = hiddev; | 892 | hid->hiddev = hiddev; |
889 | hiddev->hid = hid; | 893 | hiddev->hid = hid; |
890 | hiddev->exist = 1; | 894 | hiddev->exist = 1; |
891 | usb_set_intfdata(usbhid->intf, usbhid); | ||
892 | retval = usb_register_dev(usbhid->intf, &hiddev_class); | 895 | retval = usb_register_dev(usbhid->intf, &hiddev_class); |
893 | if (retval) { | 896 | if (retval) { |
894 | err_hid("Not able to get a minor for this device."); | 897 | err_hid("Not able to get a minor for this device."); |