Fix crash issue when passphrase decryption fails

Fix crash issue when passphrase decryption fails

If the decryption request is successful
and there is an error in response,
memory is not allocated to the data->sid->passphrase.
However, even in this case, it is freed and it cause a crash.
So it has been modified to free only when memory is allocated.

In addition to this, there are other variables
that have similar problems,
so the related codes have also been modified.

Change-Id: If83febbccfcff82cf83279f7186df73aaee0854c
Signed-off-by: Jaehyun Kim <jeik01.kim@samsung.com>