git.karo-electronics.de Git - karo-tx-linux.git/commit

author	Johan Hovold <jhovold@gmail.com>
	Tue, 22 Mar 2011 10:12:11 +0000 (11:12 +0100)
committer	Greg Kroah-Hartman <gregkh@suse.de>
	Mon, 28 Mar 2011 14:31:23 +0000 (07:31 -0700)
commit	f0394bdd62745fa4285b351a2568c0b9e8fa28f1
tree	738f0cc37b6a0cd65390e665717f90818ffb1ae3	tree \| snapshot
parent	0530c26f6cd6991fe56e37101fb440d9953309af	commit \| diff

USB: cdc-acm: fix potential null-pointer dereference on disconnect

commit 7e7797e7f6f7bfab73fca02c65e40eaa5bb9000c upstream.

Fix potential null-pointer exception on disconnect introduced by commit
11ea859d64b69a747d6b060b9ed1520eab1161fe (USB: additional power savings
for cdc-acm devices that support remote wakeup).

Only access acm->dev after making sure it is non-null in control urb
completion handler.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>