staging: comedi: dt3000: don't fail attach if irq is not available
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Thu, 5 Dec 2013 20:43:37 +0000 (13:43 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 6 Dec 2013 21:07:16 +0000 (13:07 -0800)
commit98f6303b6faf342e3e8ad8d2be2e51f5f32ed30e
tree61f93975a464e956cda33335b7828d00db0ba566
parent1f0e7161888a4852ef529d7def6ef1700a9f93e4
staging: comedi: dt3000: don't fail attach if irq is not available

The irq is only needed to support async commands. Don't fail the attach
if it is not available.

Only hook up the command support if the request_irq() was successful.

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/dt3000.c