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

Pull HID updates from Jiri Kosina:

 - bounds checking fixes in logitech and roccat drivers, from Peter Wu
   and Dan Carpenter

 - double-kfree fix in i2c-hid driver on bus shutdown, from Mika
   Westerberg

 - a couple of various small driver fixes

 - a few device id additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
  HID: Add a new id 0x501a for Genius MousePen i608X
  HID: logitech-hidpp: prefix the name with "Logitech"
  HID: logitech-hidpp: avoid unintended fall-through
  HID: Allow HID_BATTERY_STRENGTH to be enabled
  HID: i2c-hid: Do not free buffers in i2c_hid_stop()
  HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard
  HID: logitech-hidpp: check WTP report length
  HID: logitech-dj: check report length

10 files changed, 74 insertions, 9 deletions

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 230b6f887cd8..dfdc26970022 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -27,7 +27,8 @@ if HID
 
 config HID_BATTERY_STRENGTH
         bool "Battery level reporting for HID devices"
-        depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY
+        depends on HID
+        select POWER_SUPPLY
         default n
         ---help---
         This option adds support of reporting battery strength (for HID devices
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index c3d0ac1a0988..8b638792cb43 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1805,6 +1805,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 7460f3402298..9243359c1821 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -526,6 +526,7 @@
 #define USB_DEVICE_ID_KYE_GPEN_560      0x5003
 #define USB_DEVICE_ID_KYE_EASYPEN_I405X 0x5010
 #define USB_DEVICE_ID_KYE_MOUSEPEN_I608X        0x5011
+#define USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2      0x501a
 #define USB_DEVICE_ID_KYE_EASYPEN_M610X 0x5013
 
 #define USB_VENDOR_ID_LABTEC            0x1020
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index e0a0f06ac5ef..9505605b6e22 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -312,6 +312,9 @@ static const struct hid_device_id hid_battery_quirks[] = {
                                USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
           HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+                               USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
+          HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
                 USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
           HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
         {}
diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c
index b92bf01a1ae8..158fcf577fae 100644
--- a/drivers/hid/hid-kye.c
+++ b/drivers/hid/hid-kye.c
@@ -323,6 +323,7 @@ static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                 }
                 break;
         case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
+        case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2:
                 if (*rsize == MOUSEPEN_I608X_RDESC_ORIG_SIZE) {
                         rdesc = mousepen_i608x_rdesc_fixed;
                         *rsize = sizeof(mousepen_i608x_rdesc_fixed);
@@ -415,6 +416,7 @@ static int kye_probe(struct hid_device *hdev, const struct hid_device_id *id)
         switch (id->product) {
         case USB_DEVICE_ID_KYE_EASYPEN_I405X:
         case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
+        case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2:
         case USB_DEVICE_ID_KYE_EASYPEN_M610X:
                 ret = kye_tablet_enable(hdev);
                 if (ret) {
@@ -446,6 +448,8 @@ static const struct hid_device_id kye_devices[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
                                 USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
+                                USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
                                 USB_DEVICE_ID_KYE_EASYPEN_M610X) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
                                 USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index c917ab61aafa..5bc6d80d5be7 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -962,10 +962,24 @@ static int logi_dj_raw_event(struct hid_device *hdev,
 
         switch (data[0]) {
         case REPORT_ID_DJ_SHORT:
+                if (size != DJREPORT_SHORT_LENGTH) {
+                        dev_err(&hdev->dev, "DJ report of bad size (%d)", size);
+                        return false;
+                }
                 return logi_dj_dj_event(hdev, report, data, size);
         case REPORT_ID_HIDPP_SHORT:
-                /* intentional fallthrough */
+                if (size != HIDPP_REPORT_SHORT_LENGTH) {
+                        dev_err(&hdev->dev,
+                                "Short HID++ report of bad size (%d)", size);
+                        return false;
+                }
+                return logi_dj_hidpp_event(hdev, report, data, size);
         case REPORT_ID_HIDPP_LONG:
+                if (size != HIDPP_REPORT_LONG_LENGTH) {
+                        dev_err(&hdev->dev,
+                                "Long HID++ report of bad size (%d)", size);
+                        return false;
+                }
                 return logi_dj_hidpp_event(hdev, report, data, size);
         }
 
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 2f420c0b6609..a93cefe0e522 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -282,6 +282,33 @@ static inline bool hidpp_report_is_connect_event(struct hidpp_report *report)
                 (report->rap.sub_id == 0x41);
 }
 
+/**
+ * hidpp_prefix_name() prefixes the current given name with "Logitech ".
+ */
+static void hidpp_prefix_name(char **name, int name_length)
+{
+#define PREFIX_LENGTH 9 /* "Logitech " */
+
+        int new_length;
+        char *new_name;
+
+        if (name_length > PREFIX_LENGTH &&
+            strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0)
+                /* The prefix has is already in the name */
+                return;
+
+        new_length = PREFIX_LENGTH + name_length;
+        new_name = kzalloc(new_length, GFP_KERNEL);
+        if (!new_name)
+                return;
+
+        snprintf(new_name, new_length, "Logitech %s", *name);
+
+        kfree(*name);
+
+        *name = new_name;
+}
+
 /* -------------------------------------------------------------------------- */
 /* HIDP++ 1.0 commands                                                        */
 /* -------------------------------------------------------------------------- */
@@ -321,6 +348,10 @@ static char *hidpp_get_unifying_name(struct hidpp_device *hidpp_dev)
                 return NULL;
 
         memcpy(name, &response.rap.params[2], len);
+
+        /* include the terminating '\0' */
+        hidpp_prefix_name(&name, len + 1);
+
         return name;
 }
 
@@ -498,6 +529,9 @@ static char *hidpp_get_device_name(struct hidpp_device *hidpp)
                 index += ret;
         }
 
+        /* include the terminating '\0' */
+        hidpp_prefix_name(&name, __name_length + 1);
+
         return name;
 }
 
@@ -794,18 +828,25 @@ static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size)
 
         switch (data[0]) {
         case 0x02:
+                if (size < 2) {
+                        hid_err(hdev, "Received HID report of bad size (%d)",
+                                size);
+                        return 1;
+                }
                 if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) {
                         input_event(wd->input, EV_KEY, BTN_LEFT,
                                         !!(data[1] & 0x01));
                         input_event(wd->input, EV_KEY, BTN_RIGHT,
                                         !!(data[1] & 0x02));
                         input_sync(wd->input);
+                        return 0;
                 } else {
                         if (size < 21)
                                 return 1;
                         return wtp_mouse_raw_xy_event(hidpp, &data[7]);
                 }
         case REPORT_ID_HIDPP_LONG:
+                /* size is already checked in hidpp_raw_event. */
                 if ((report->fap.feature_index != wd->mt_feature_index) ||
                     (report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY))
                         return 1;
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 1a07e07d99a0..47d7e74231e5 100644
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -35,6 +35,8 @@ static struct class *pyra_class;
 static void profile_activated(struct pyra_device *pyra,
                 unsigned int new_profile)
 {
+        if (new_profile >= ARRAY_SIZE(pyra->profile_settings))
+                return;
         pyra->actual_profile = new_profile;
         pyra->actual_cpi = pyra->profile_settings[pyra->actual_profile].y_cpi;
 }
@@ -257,9 +259,11 @@ static ssize_t pyra_sysfs_write_settings(struct file *fp,
         if (off != 0 || count != PYRA_SIZE_SETTINGS)
                 return -EINVAL;
 
-        mutex_lock(&pyra->pyra_lock);
-
         settings = (struct pyra_settings const *)buf;
+        if (settings->startup_profile >= ARRAY_SIZE(pyra->profile_settings))
+                return -EINVAL;
+
+        mutex_lock(&pyra->pyra_lock);
 
         retval = pyra_set_settings(usb_dev, settings);
         if (retval) {
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index d32037cbf9db..d43e967e7533 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -706,12 +706,7 @@ static int i2c_hid_start(struct hid_device *hid)
 
 static void i2c_hid_stop(struct hid_device *hid)
 {
-        struct i2c_client *client = hid->driver_data;
-        struct i2c_hid *ihid = i2c_get_clientdata(client);
-
         hid->claimed = 0;
-
-        i2c_hid_free_buffers(ihid);
 }
 
 static int i2c_hid_open(struct hid_device *hid)
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index dc89be90b35e..b27b3d33ebab 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -124,6 +124,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT },
+        { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS },
         { USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD, HID_QUIRK_NO_INIT_REPORTS },