4 files changed, 7 insertions, 2 deletions

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index a42c466f709..6da962c9b21 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1423,6 +1423,8 @@ static void release_one_tty(struct work_struct *work)
         list_del_init(&tty->tty_files);
         file_list_unlock();
 
+        put_pid(tty->pgrp);
+        put_pid(tty->session);
         free_tty_struct(tty);
 }
 
diff --git a/drivers/hid/hid-gyration.c b/drivers/hid/hid-gyration.c
index cab13e8c7d2..62416e6baec 100644
--- a/drivers/hid/hid-gyration.c
+++ b/drivers/hid/hid-gyration.c
@@ -53,10 +53,13 @@ static int gyration_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 static int gyration_event(struct hid_device *hdev, struct hid_field *field,
                 struct hid_usage *usage, __s32 value)
 {
-        struct input_dev *input = field->hidinput->input;
+
+        if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
+                return 0;
 
         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
                         (usage->hid & 0xff) == 0x82) {
+                struct input_dev *input = field->hidinput->input;
                 input_event(input, usage->type, usage->code, 1);
                 input_sync(input);
                 input_event(input, usage->type, usage->code, 0);
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 928943c7ce9..e71e0057284 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -60,6 +60,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
+        { USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
         { USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 5e13d23b5f0..8b45145b913 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -23,7 +23,6 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
-#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>