Merge tag 'for-linus-2023041201' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID fixes from Jiri Kosina:

 - kernel panic fix for intel-ish-hid driver (Tanu Malhotra)

 - buffer overflow fix in hid-sensor-custom driver (Todd Brandt)

 - two device specific quirks (Alessandro Manca, Philippe Troin)

* tag 'for-linus-2023041201' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: intel-ish-hid: Fix kernel panic during warm reset
  HID: hid-sensor-custom: Fix buffer overrun in device name
  HID: topre: Add support for 87 keys Realforce R2
  HID: add HP 13t-aw100 & 14t-ea100 digitizer battery quirks

6 files changed, 16 insertions, 4 deletions

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 82f64fb31fdab6..4ce012f83253ec 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -1122,7 +1122,7 @@ config HID_TOPRE
 	tristate "Topre REALFORCE keyboards"
 	depends on HID
 	help
-	  Say Y for N-key rollover support on Topre REALFORCE R2 108 key keyboards.
+	  Say Y for N-key rollover support on Topre REALFORCE R2 108/87 key keyboards.
 
 config HID_THINGM
 	tristate "ThingM blink(1) USB RGB LED"
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 63545cd307e5f8..c2e9b6d1fd7d3e 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -420,6 +420,9 @@
 #define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN	0x261A
 #define I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN	0x2A1C
 #define I2C_DEVICE_ID_LENOVO_YOGA_C630_TOUCHSCREEN	0x279F
+#define I2C_DEVICE_ID_HP_SPECTRE_X360_13T_AW100	0x29F5
+#define I2C_DEVICE_ID_HP_SPECTRE_X360_14T_EA100_V1	0x2BED
+#define I2C_DEVICE_ID_HP_SPECTRE_X360_14T_EA100_V2	0x2BEE
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
@@ -1249,6 +1252,7 @@
 
 #define USB_VENDOR_ID_TOPRE			0x0853
 #define USB_DEVICE_ID_TOPRE_REALFORCE_R2_108			0x0148
+#define USB_DEVICE_ID_TOPRE_REALFORCE_R2_87			0x0146
 
 #define USB_VENDOR_ID_TOPSEED		0x0766
 #define USB_DEVICE_ID_TOPSEED_CYBERLINK	0x0204
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 7fc967964dd816..5c65a584b3fa00 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -398,6 +398,12 @@ static const struct hid_device_id hid_battery_quirks[] = {
 	  HID_BATTERY_QUIRK_IGNORE },
 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_LENOVO_YOGA_C630_TOUCHSCREEN),
 	  HID_BATTERY_QUIRK_IGNORE },
+	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_13T_AW100),
+	  HID_BATTERY_QUIRK_IGNORE },
+	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_14T_EA100_V1),
+	  HID_BATTERY_QUIRK_IGNORE },
+	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_HP_SPECTRE_X360_14T_EA100_V2),
+	  HID_BATTERY_QUIRK_IGNORE },
 	{}
 };
 
diff --git a/drivers/hid/hid-sensor-custom.c b/drivers/hid/hid-sensor-custom.c
index 3e3f89e01d819b..d85398721659ab 100644
--- a/drivers/hid/hid-sensor-custom.c
+++ b/drivers/hid/hid-sensor-custom.c
@@ -940,7 +940,7 @@ hid_sensor_register_platform_device(struct platform_device *pdev,
 				    struct hid_sensor_hub_device *hsdev,
 				    const struct hid_sensor_custom_match *match)
 {
-	char real_usage[HID_SENSOR_USAGE_LENGTH];
+	char real_usage[HID_SENSOR_USAGE_LENGTH] = { 0 };
 	struct platform_device *custom_pdev;
 	const char *dev_name;
 	char *c;
diff --git a/drivers/hid/hid-topre.c b/drivers/hid/hid-topre.c
index 88a91cdad5f800..d1d5ca310eadc0 100644
--- a/drivers/hid/hid-topre.c
+++ b/drivers/hid/hid-topre.c
@@ -36,6 +36,8 @@ static __u8 *topre_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 static const struct hid_device_id topre_id_table[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPRE,
 			 USB_DEVICE_ID_TOPRE_REALFORCE_R2_108) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPRE,
+			 USB_DEVICE_ID_TOPRE_REALFORCE_R2_87) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, topre_id_table);
diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c
index 81385ab37fa9a0..7fc738a2237556 100644
--- a/drivers/hid/intel-ish-hid/ishtp/bus.c
+++ b/drivers/hid/intel-ish-hid/ishtp/bus.c
@@ -241,8 +241,8 @@ static int ishtp_cl_bus_match(struct device *dev, struct device_driver *drv)
 	struct ishtp_cl_device *device = to_ishtp_cl_device(dev);
 	struct ishtp_cl_driver *driver = to_ishtp_cl_driver(drv);
 
-	return guid_equal(&driver->id[0].guid,
-			  &device->fw_client->props.protocol_name);
+	return(device->fw_client ? guid_equal(&driver->id[0].guid,
+	       &device->fw_client->props.protocol_name) : 0);
 }
 
 /**