soccr: don't dereference data before null check

CID 173075 (#1 of 1): Dereference before null check (REVERSE_INULL)
check_after_deref: Null-checking data suggests that it may be null, but it has already been dereferenced on all paths leading to the check.

travis-ci: success for soccr: don't dereference data before null check
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>