carl9170: add missing return-value check

This patch adds a forgotten bail-out path.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Christian Lamparter 2010-12-26 18:21:53 +01:00 • committed by John W. Linville
commit c9e57f0fdc