usb-storage: ignore ZTE MF 823 card reader in mode 0x1225
authorOliver Neukum <oneukum@suse.com>
Mon, 6 Jul 2015 11:12:32 +0000 (13:12 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 10 Aug 2015 19:20:31 +0000 (12:20 -0700)
commit76e0de0ab13401b76c5de2f48bd8d4edf809f9a5
treef097e48980ec78ac8b852aaa11fa8b97b83b6bce
parent357dafbca56c66e47d3a76f036c47d8b756fe17b
usb-storage: ignore ZTE MF 823 card reader in mode 0x1225

commit 5fb2c782f451a4fb9c19c076e2c442839faf0f76 upstream.

This device automatically switches itself to another mode (0x1405)
unless the specific access pattern of Windows is followed in its
initial mode. That makes a dirty unmount of the internal storage
devices inevitable if they are mounted. So the card reader of
such a device should be ignored, lest an unclean removal become
inevitable.

This replaces an earlier patch that ignored all LUNs of this device.
That patch was overly broad.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Lars Melin <larsm17@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/storage/unusual_devs.h