USB: option: fix when the driver is loaded incorrectly for some Huawei devices.
authorma rui <m00150988@huawei.com>
Mon, 1 Nov 2010 03:32:18 +0000 (11:32 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 11 Nov 2010 15:01:48 +0000 (07:01 -0800)
commit58c0d9d70109bd7e82bdb9517007311a48499960
treed9303886c2111064ded1562274592bd7d4b3c24c
parentef821ae70fc35a76bdce7e07c70a1a7c2c33cdb9
USB: option: fix when the driver is loaded incorrectly for some Huawei devices.

When huawei datacard with PID 0x14AC is insterted into Linux system, the
present kernel will load the "option" driver to all the interfaces. But
actually, some interfaces run as other function and do not need "option"
driver.

In this path, we modify the id_tables, when the PID is 0x14ac ,VID is
0x12d1, Only when the interface's Class is 0xff,Subclass is 0xff, Pro is
0xff, it does need "option" driver.

Signed-off-by: ma rui <m00150988@huawei.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/serial/option.c