[src/nick-nhusb]: src/sys/dev/usb Remove useless check

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a3cf4eae75be
branches:  nick-nhusb
changeset: 334631:a3cf4eae75be
user:      skrll <skrll%NetBSD.org@localhost>
date:      Thu Feb 02 07:34:15 2017 +0000

description:
Remove useless check

diffstat:

 sys/dev/usb/if_smsc.c |  5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diffs (19 lines):

diff -r d3757c8f2d96 -r a3cf4eae75be sys/dev/usb/if_smsc.c
--- a/sys/dev/usb/if_smsc.c     Thu Feb 02 07:23:03 2017 +0000
+++ b/sys/dev/usb/if_smsc.c     Thu Feb 02 07:34:15 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_smsc.c,v 1.22.2.25 2017/02/02 07:23:03 skrll Exp $  */
+/*     $NetBSD: if_smsc.c,v 1.22.2.26 2017/02/02 07:34:15 skrll Exp $  */
 
 /*     $OpenBSD: if_smsc.c,v 1.4 2012/09/27 12:38:11 jsg Exp $ */
 /*     $FreeBSD: src/sys/dev/usb/net/if_smsc.c,v 1.1 2012/08/15 04:03:55 gonzo Exp $ */
@@ -474,9 +474,6 @@
        uint32_t val;
        int err;
 
-       if (!ifp)
-               return EIO;
-
        err = smsc_read_reg(sc, SMSC_COE_CTRL, &val);
        if (err != 0) {
                smsc_warn_printf(sc, "failed to read SMSC_COE_CTRL (err=%d)\n",