Corrected segfault when using unwriteable cache directory.

We were not exiting the control flow properly for a
certain type of error.

Change-Id: I66775e0d0cd10ec968dbc0f6a6fc94f943d9ee0e
Reviewed-on: http://review.couchbase.org/34644
Reviewed-by: Mark Nunberg <mnunberg@haskalah.org>
Tested-by: Brett Lawson <brett19@gmail.com>

Author: brett19

create.c

@@ -392,6 +392,7 @@ void php_couchbase_create_impl(INTERNAL_FUNCTION_PARAMETERS, int oo)
 					couchbase_report_error(INTERNAL_FUNCTION_PARAM_PASSTHRU, oo,
 										   cb_exception,
 										   COUCHBASE_G(config_cache_error));
+					return;
 				}
 			}