USB: cdc-wdm: updating desc->length must be protected by spin_lock
commit89b6c4ea1a545908809604812e23a7f83ba782e8
authorBjørn Mork <bjorn@mork.no>
Mon, 16 Jan 2012 11:41:47 +0000 (16 12:41 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 3 Feb 2012 17:26:55 +0000 (3 09:26 -0800)
tree9963c4aa424c4bd5bcdc4213118d01bfc60c0406
parentf9a85dfe60bbfe74ecd0c62863e8b683314533a4
USB: cdc-wdm: updating desc->length must be protected by spin_lock

commit c428b70c1e115c5649707a602742e34130d19428 upstream.

wdm_in_callback() will also touch this field, so we cannot change it without locking

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-wdm.c