Hello,

I'm using a particular multi touch screen module, which is the
TP 72055 from Data Modul. They have tested it only for Win7.

Using it I have found a crash in hid_report_raw_event() on kernel
2.6.37, but I believe is there also in latest one.

Debugging the issue it seems that it is caused by the fact that
TP72055 module issues a hid report with a size equals to 0. The rsize
value gets set to 536870912 and Linux is crashing in the memset because 
the value is too big.

I think a proper checking on rsize must be made to avoid cases like that.
I'm attaching the simple patch I made.

Pls let me know if the fix makes sense or not.

THx,
Arm