Sean Bruno 97ed09b5ff Check return of cam_periph_find() before using it in a printf.
If cam_periph_find() doesn't locate the path we requested, bail to error
condition.

Acquire ciss->mtx for this operation.

Reviewed by:	"Benesh, Scott" <scott.benesh@hp.com>
MFC after:	2 weeks
2014-06-29 18:38:44 +00:00
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