USB: cdc-acm: fix potential null-pointer dereference on disconnect
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.
Cc: stable <stable@kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
BUG=chrome-os-partner:3143
TEST=run power_Resume test in tight loops on Alex.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Review URL: http://codereview.chromium.org/6813077
Change-Id: I0d52af5b01ec5cd2046881d4523231e6e60cdddf
1 file changed
