HID: fix a crash in hid_report_raw_event() function.
I'm using a Data Modul EasyTouch USB multitouch controller, which is issuing 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. Signed-off-by: Armando Visconti <armando.visconti@st.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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@ -1045,6 +1045,9 @@ void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
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rsize = ((report->size - 1) >> 3) + 1;
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if (rsize > HID_MAX_BUFFER_SIZE)
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rsize = HID_MAX_BUFFER_SIZE;
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if (csize < rsize) {
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dbg_hid("report %d is too short, (%d < %d)\n", report->id,
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csize, rsize);
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