illumos gate

There is the following code in the connmgr_get() function in rpcmod:

1936                if (srcaddr->len > 0)
1937                    kmem_free(srcaddr->buf,
1938                        srcaddr->maxlen);
1939                srcaddr->buf = kmem_zalloc(
1940                    lru_entry->x_src.len, KM_SLEEP);
1941                srcaddr->maxlen = srcaddr->len =
1942                    lru_entry->x_src.len;

The problem is that in a case srcaddr->len == 0, but srcaddr->maxlen > 0 (at line 1936) the code will leak the previously allocated srcaddr->buf. I believe the leak currently cannot happen, since the code always sets srcaddr->maxlen and srcaddr->len to same value, but it is still worth fixing to make sure any future modifications to this code that would introduce a case when srcaddr->len != srcaddr->maxlen won't suddenly start to leak.