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author | Ingo Molnar <mingo@elte.hu> | 2010-08-25 15:09:58 +0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-08-25 15:10:00 +0400 |
commit | 7de5d895b2020260190db0021de646f3f22f755e (patch) | |
tree | 51d012f0b76a2ec1bd3b4837690faf1087f37056 /drivers/hid/usbhid/hiddev.c | |
parent | 04fba67163a9e6132614b72b33bb2743bd33ffb3 (diff) | |
parent | 502adf5778f4151dcba3f64dd6ed322151f3712c (diff) | |
download | linux-7de5d895b2020260190db0021de646f3f22f755e.tar.xz |
Merge branch 'linus' into perf/core
Merge reason: pick up perf fixes
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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) { struct hiddev_list *list; struct usb_interface *intf; + struct hid_device *hid; struct hiddev *hiddev; int res; intf = usb_find_interface(&hiddev_driver, iminor(inode)); if (!intf) return -ENODEV; - hiddev = usb_get_intfdata(intf); + hid = usb_get_intfdata(intf); + hiddev = hid->hiddev; if (!(list = kzalloc(sizeof(struct hiddev_list), GFP_KERNEL))) return -ENOMEM; @@ -587,7 +589,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct hiddev_list *list = file->private_data; struct hiddev *hiddev = list->hiddev; struct hid_device *hid = hiddev->hid; - struct usb_device *dev = hid_to_usb_dev(hid); + struct usb_device *dev; struct hiddev_collection_info cinfo; struct hiddev_report_info rinfo; struct hiddev_field_info finfo; @@ -601,9 +603,11 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) /* Called without BKL by compat methods so no BKL taken */ /* FIXME: Who or what stop this racing with a disconnect ?? */ - if (!hiddev->exist) + if (!hiddev->exist || !hid) return -EIO; + dev = hid_to_usb_dev(hid); + switch (cmd) { case HIDIOCGVERSION: @@ -888,7 +892,6 @@ int hiddev_connect(struct hid_device *hid, unsigned int force) hid->hiddev = hiddev; hiddev->hid = hid; hiddev->exist = 1; - usb_set_intfdata(usbhid->intf, usbhid); retval = usb_register_dev(usbhid->intf, &hiddev_class); if (retval) { err_hid("Not able to get a minor for this device."); |