| From | lizf@kernel ... | Subject | [PATCH 3.4 041/107] usb-storage: ignore ZTE MF 823 card reader in mode 0x1225 | Date | Wed, 16 Mar 2016 16:05:35 +0800 |
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From: Oliver Neukum <oneukum@suse.com>
3.4.111-rc1 review patch. If anyone has any objections, please let me know.
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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> Signed-off-by: Zefan Li <lizefan@huawei.com> --- drivers/usb/storage/unusual_devs.h | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index d0ecaf9..61f93ea 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -2019,6 +2019,18 @@ UNUSUAL_DEV( 0x1908, 0x3335, 0x0200, 0x0200, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_READ_DISC_INFO ), +/* Reported by Oliver Neukum <oneukum@suse.com> + * This device morphes spontaneously into another device if the access + * pattern of Windows isn't followed. Thus writable media would be dirty + * if the initial instance is used. So the device is limited to its + * virtual CD. + * And yes, the concept that BCD goes up to 9 is not heeded */ +UNUSUAL_DEV( 0x19d2, 0x1225, 0x0000, 0xffff, + "ZTE,Incorporated", + "ZTE WCDMA Technologies MSM", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_SINGLE_LUN ), + /* Reported by Sven Geggus <sven-usbst@geggus.net> * This encrypted pen drive returns bogus data for the initial READ(10). */ -- 1.9.1
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