4.17-stable review patch. If anyone has any objections, please let me know.
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From: Lubomir Rintel lkundrak@v3.sk
commit 1445cbe476fc3dd09c0b380b206526a49403c071 upstream.
The device (a POS terminal) implements CDC ACM, but has not union descriptor.
Signed-off-by: Lubomir Rintel lkundrak@v3.sk Acked-by: Oliver Neukum oneukum@suse.com Cc: stable stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/class/cdc-acm.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1831,6 +1831,9 @@ static const struct usb_device_id acm_id { USB_DEVICE(0x09d8, 0x0320), /* Elatec GmbH TWN3 */ .driver_info = NO_UNION_NORMAL, /* has misplaced union descriptor */ }, + { USB_DEVICE(0x0ca6, 0xa050), /* Castles VEGA3000 */ + .driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */ + },
{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */ .driver_info = CLEAR_HALT_CONDITIONS,