Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

Pull HID updates from Jiri Kosina:
 "Highlights:

   - conversion of HID subsystem to use devm-based resource management,
     from Benjamin Tissoires

   - i2c-hid support for DT bindings, from Benjamin Tissoires

   - much improved support for Win8-multitouch devices, from Benjamin
     Tissoires

   - cleanup of core code using common hidinput_input_event(), from
     David Herrmann

   - fix for bug in implement() access to the bit stream (causing oops)
     that has been present in the code for ages, but devices that are
     able to trigger it have started to appear only now, from Jiri
     Kosina

   - fixes for CVE-2013-2899, CVE-2013-2898, CVE-2013-2896,
     CVE-2013-2892, CVE-2013-2888 (all triggerable only by specially
     crafted malicious HW devices plugged into the system), from Kees
     Cook

   - hidraw oops fix, from Manoj Chourasia

   - various smaller fixes here and there, support for a bunch of new
     devices by various contributors"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (53 commits)
  HID: MAINTAINERS: add roccat drivers
  HID: hid-sensor-hub: change kmalloc + memcpy by kmemdup
  HID: hid-sensor-hub: move to devm_kzalloc
  HID: hid-sensor-hub: fix indentation accross the code
  HID: move HID_REPORT_TYPES closer to the report-definitions
  HID: check for NULL field when setting values
  HID: picolcd_core: validate output report details
  HID: sensor-hub: validate feature report details
  HID: ntrig: validate feature report details
  HID: pantherlord: validate output report details
  HID: hid-wiimote: print small buffers via %*phC
  HID: uhid: improve uhid example client
  HID: Correct the USB IDs for the new Macbook Air 6
  HID: wiimote: add support for Guitar-Hero guitars
  HID: wiimote: add support for Guitar-Hero drums
  Input: introduce BTN/ABS bits for drums and guitars
  HID: battery: don't do DMA from stack
  HID: roccat: add support for KonePureOptical v2
  HID: picolcd: Prevent NULL pointer dereference on _remove()
  HID: usbhid: quirk for N-Trig DuoSense Touch Screen
  ...

1 files changed, 15 insertions, 7 deletions

diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index cd33084c7860..7800b1410562 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -619,7 +619,7 @@ static int logi_dj_ll_input_event(struct input_dev *dev, unsigned int type,
 
         struct hid_field *field;
         struct hid_report *report;
-        unsigned char data[8];
+        unsigned char *data;
         int offset;
 
         dbg_hid("%s: %s, type:%d | code:%d | value:%d\n",
@@ -635,6 +635,13 @@ static int logi_dj_ll_input_event(struct input_dev *dev, unsigned int type,
                 return -1;
         }
         hid_set_field(field, offset, value);
+
+        data = hid_alloc_report_buf(field->report, GFP_ATOMIC);
+        if (!data) {
+                dev_warn(&dev->dev, "failed to allocate report buf memory\n");
+                return -1;
+        }
+
         hid_output_report(field->report, &data[0]);
 
         output_report_enum = &dj_rcv_hiddev->report_enum[HID_OUTPUT_REPORT];
@@ -645,8 +652,9 @@ static int logi_dj_ll_input_event(struct input_dev *dev, unsigned int type,
 
         hid_hw_request(dj_rcv_hiddev, report, HID_REQ_SET_REPORT);
 
-        return 0;
+        kfree(data);
 
+        return 0;
 }
 
 static int logi_dj_ll_start(struct hid_device *hid)
@@ -801,10 +809,10 @@ static int logi_dj_probe(struct hid_device *hdev,
         }
 
         /* This is enabling the polling urb on the IN endpoint */
-        retval = hdev->ll_driver->open(hdev);
+        retval = hid_hw_open(hdev);
         if (retval < 0) {
-                dev_err(&hdev->dev, "%s:hdev->ll_driver->open returned "
-                        "error:%d\n", __func__, retval);
+                dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n",
+                        __func__, retval);
                 goto llopen_failed;
         }
 
@@ -821,7 +829,7 @@ static int logi_dj_probe(struct hid_device *hdev,
         return retval;
 
 logi_dj_recv_query_paired_devices_failed:
-        hdev->ll_driver->close(hdev);
+        hid_hw_close(hdev);
 
 llopen_failed:
 switch_to_dj_mode_fail:
@@ -863,7 +871,7 @@ static void logi_dj_remove(struct hid_device *hdev)
 
         cancel_work_sync(&djrcv_dev->work);
 
-        hdev->ll_driver->close(hdev);
+        hid_hw_close(hdev);
         hid_hw_stop(hdev);
 
         /* I suppose that at this point the only context that can access