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Checking if a OICMalloc is failed is added.
Calling OICFree to prevent a memory leak is added.

Follow coding convention padding after condition "if ("

Change-Id: Ifdd2ba5f747758bd0120ff396f7441b77a444b81
Signed-off-by: Jihun Ha <jihun.ha@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/17971Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Reviewed-by: Uze Choi <uzchoi@samsung.com>