Patch "usb-storage: ignore ZTE MF 823 card reader in mode 0x1225" has been added to the 3.14-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
usb-storage: ignore ZTE MF 823 card reader in mode 0x1225
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-storage-ignore-zte-mf-823-card-reader-in-mode-0x1225.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
5fb2c782f451a4fb9c19c076e2c442839faf0f76Mon Sep 17 00:00:00 2001
From: Oliver Neukum <[email protected]>
Date: Mon, 6 Jul 2015 13:12:32 +0200
Subject: usb-storage: ignore ZTE MF 823 card reader in mode 0x1225
From: Oliver Neukum <[email protected]>
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.
--- drivers/usb/storage/unusual_devs.h | 12 ++++++++++++ 1 file changed, 12 insertions(+)
drivers/usb/storage/unusual_devs.h +12 -0
@@ -2032,6 +2032,18 @@ UNUSUAL_DEV( 0x1908, 0x3335, 0x0200, 0x0 USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_READ_DISC_INFO ), +/* Reported by Oliver Neukum <[email protected]> +* 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 <[email protected]> * This encrypted pen drive returns bogus data for the initial READ(10). */
Patches currently in stable-queue which might be from [email protected] are
queue-3.14/usb-storage-ignore-zte-mf-823-card-reader-in-mode-0x1225.patch