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usb-storage: ignore ZTE MF 823 card reader in mode 0x1225

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commit 5fb2c782f4 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>
This commit is contained in:
Oliver Neukum
2015-07-06 13:12:32 +02:00
committed by Greg Kroah-Hartman
parent 357dafbca5
commit 76e0de0ab1
1 changed files with 12 additions and 0 deletions
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12
drivers/usb/storage/unusual_devs.h
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@@ -2032,6 +2032,18 @@ 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).
*/