USB: serial: io_edgeport: fix descriptor error handling
authorJohan Hovold <johan@kernel.org>
Thu, 12 Jan 2017 13:56:14 +0000 (14:56 +0100)
committerJohan Hovold <johan@kernel.org>
Mon, 16 Jan 2017 15:38:56 +0000 (16:38 +0100)
commit3c0e25d883d06a1fbd1ad35257e8abaa57befb37
treeb501418076edfddb14c8637e044e1abda9c7bea5
parente4457d9798adb96272468e93da663de9bd0a4198
USB: serial: io_edgeport: fix descriptor error handling

Make sure to detect short control-message transfers and log an error
when reading incomplete manufacturer and boot descriptors.

Note that the default all-zero descriptors will now be used after a
short transfer is detected instead of partially initialised ones.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/io_edgeport.c