Nop null checks in ti(4)

[Michael McConville]

Clang 3.7 warns about this. The rings are arrays, not pointers, so they
can't be NULL.

ok? Or should these checks be replaced rather than removed?


Index: dev/ic/ti.c
===================================================================
RCS file: /cvs/src/sys/dev/ic/ti.c,v
retrieving revision 1.22
diff -u -p -r1.22 ti.c
--- dev/ic/ti.c 25 Nov 2015 03:09:58 -0000 1.22
+++ dev/ic/ti.c 5 Feb 2016 05:34:14 -0000
@@ -484,9 +484,6 @@ ti_handle_events(struct ti_softc *sc)
struct ti_event_desc *e;
struct ifnet *ifp = &sc->arpcom.ac_if;

- if (sc->ti_rdata->ti_event_ring == NULL)
- return;
-
while (sc->ti_ev_saved_considx != sc->ti_ev_prodidx.ti_idx) {
e = &sc->ti_rdata->ti_event_ring[sc->ti_ev_saved_considx];
switch (TI_EVENT_EVENT(e)) {
@@ -846,9 +843,6 @@ ti_free_tx_ring(struct ti_softc *sc)
{
int i;
struct ti_txmap_entry *entry;
-
- if (sc->ti_rdata->ti_tx_ring == NULL)
- return;

for (i = 0; i < TI_TX_RING_CNT; i++) {
if (sc->ti_cdata.ti_tx_chain[i] != NULL) {