]> git.karo-electronics.de Git - linux-beck.git/commit
USB: prevent buggy hubs from crashing the USB stack
authorAlan Stern <stern@rowland.harvard.edu>
Mon, 31 Jan 2011 15:56:37 +0000 (10:56 -0500)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 4 Feb 2011 00:46:06 +0000 (16:46 -0800)
commitd199c96d41d80a567493e12b8e96ea056a1350c1
treed3a5df8eca1476e6ba950b941a69de3becf6b75d
parent6d86d52a33cfe6338efd007cfcca895b18c1d84b
USB: prevent buggy hubs from crashing the USB stack

If anyone comes across a high-speed hub that (by mistake or by design)
claims to have no Transaction Translators, plugging a full- or
low-speed device into it will cause the USB stack to crash.  This
patch (as1446) prevents the problem by ignoring such devices, since
the kernel has no way to communicate with them.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Perry Neben <neben@vmware.com>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/core/hub.c