The variable "ret" is immediately reassigned by a following statement.
Thus omit the explicit initialisation at the beginning.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Reviewed-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>