3.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jason Gerecke <[email protected]>

commit 5989a55a4c9aafba8b152c6bf52244510c2b88b9 upstream.

The commit which introduced TransducerSerialNumber (368c966) is missing
two crucial implementation details. Firstly, the commit does not set the
type/code/bit/max fields as expected later down the code which can cause
the driver to crash when a tablet with this usage is connected. Secondly,
the call to 'set_bit' causes MSC_PULSELED to be sent instead of the
expected MSC_SERIAL. This commit addreses both issues.

Signed-off-by: Jason Gerecke <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Reviewed-by: Ping Cheng <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/hid/hid-input.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -689,7 +689,10 @@ static void hidinput_configure_usage(str
                        break;
 
                case 0x5b: /* TransducerSerialNumber */
-                       set_bit(MSC_SERIAL, input->mscbit);
+                       usage->type = EV_MSC;
+                       usage->code = MSC_SERIAL;
+                       bit = input->mscbit;
+                       max = MSC_MAX;
                        break;
 
                default:  goto unknown;


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