Revert "staging: comedi: drivers: Remove unneeded NULL check before kfree()"

This reverts commit 3545bee9b8.

It's not correct.

Reported-by: Hartley Sweeten <HartleyS@visionengravers.com>
Cc: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2016-03-10 19:35:54 -08:00
commit 7bf777fbfe