HID: cp2112: fix to force single data-report reply

Current implementation of cp2112_raw_event() only accepts one data report at a
time. If last received data report is not fully handled yet, a new incoming
data report will overwrite it. In such case we don't guaranteed to propagate
the correct incoming data.

The trivial fix implemented here forces a single report at a time by requesting
in cp2112_read() no more than 61 byte of data, which is the payload size of a
single data report.

Cc: [e-mail]
Signed-off-by: Antonio Borneo <[e-mail]>
Tested-by: Ellen Wang <[e-mail]>
Signed-off-by: Jiri Kosina <[e-mail]>

drivers/hid/hid-cp2112.c

···
 	struct cp2112_force_read_report report;
 	int ret;
 
+	if (size > sizeof(dev->read_data))
+		size = sizeof(dev->read_data);
 	report.report = CP2112_DATA_READ_FORCE_SEND;
 	report.length = cpu_to_be16(size);