HID: i2c-hid-of: fix NULL-deref on failed power up

A while back the I2C HID implementation was split in an ACPI and OF
part, but the new OF driver never initialises the client pointer which
is dereferenced on power-up failures.

Fixes: b33752c ("HID: i2c-hid: Reorganize so ACPI and OF are separate modules")
Cc: [email protected]      # 5.12
Cc: Douglas Anderson <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

Author: jhovold

drivers/hid/i2c-hid/i2c-hid-of.c

@@ -87,6 +87,7 @@ static int i2c_hid_of_probe(struct i2c_client *client)
 	if (!ihid_of)
 		return -ENOMEM;
 
+	ihid_of->client = client;
 	ihid_of->ops.power_up = i2c_hid_of_power_up;
 	ihid_of->ops.power_down = i2c_hid_of_power_down;