staging: comedi: mite: (!foo) preferred over (foo == NULL)
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Wed, 4 Mar 2015 19:15:33 +0000 (12:15 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Mar 2015 00:01:28 +0000 (16:01 -0800)
commit5effdf708100fd5eeeaa8c7bbbed3b90cbb70cf5
treee0cffb26162362b73450eae9ba3f8f29f7ba2d6b
parent854472c27046646f3f258970a9fee9ab1e5d7593
staging: comedi: mite: (!foo) preferred over (foo == NULL)

Also, clarify the 'ring' allocation failure by returning NULL instead
of 'ring' (which would be NULL).

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/mite.c