[src/trunk]: src/sys/arch/arm/imx fix always false comparison.

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

details:   https://anonhg.NetBSD.org/src/rev/23185395bc54
branches:  trunk
changeset: 813905:23185395bc54
user:      ryo <ryo%NetBSD.org@localhost>
date:      Thu Feb 25 13:27:33 2016 +0000

description:
fix always false comparison.

pointed out by joerg@

diffstat:

 sys/arch/arm/imx/imx6_ahcisata.c |  12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diffs (44 lines):

diff -r 0a703c257fa4 -r 23185395bc54 sys/arch/arm/imx/imx6_ahcisata.c
--- a/sys/arch/arm/imx/imx6_ahcisata.c  Thu Feb 25 13:23:27 2016 +0000
+++ b/sys/arch/arm/imx/imx6_ahcisata.c  Thu Feb 25 13:27:33 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: imx6_ahcisata.c,v 1.2 2014/10/06 10:27:13 ryo Exp $    */
+/*     $NetBSD: imx6_ahcisata.c,v 1.3 2016/02/25 13:27:33 ryo Exp $    */
 
 /*
  * Copyright (c) 2014 Ryo Shimizu <ryo%nerv.org@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: imx6_ahcisata.c,v 1.2 2014/10/06 10:27:13 ryo Exp $");
+__KERNEL_RCSID(0, "$NetBSD: imx6_ahcisata.c,v 1.3 2016/02/25 13:27:33 ryo Exp $");
 
 #include "locators.h"
 #include "opt_imx.h"
@@ -259,7 +259,7 @@
 ixm6_ahcisata_init(struct imx_ahci_softc *sc)
 {
        uint32_t v;
-       int timeout;
+       int timeout, pllstat;
 
        /* AHCISATA clock enable */
        v = imx6_ccm_read(CCM_CCGR5);
@@ -308,13 +308,13 @@
 
        for (timeout = 50; timeout > 0; --timeout) {
                delay(100);
-               v = imx6_ahcisata_phy_read(sc, SATA_PHY_LANE0_OUT_STAT);
-               if (v < 0) {
+               pllstat = imx6_ahcisata_phy_read(sc, SATA_PHY_LANE0_OUT_STAT);
+               if (pllstat < 0) {
                        aprint_error_dev(sc->sc_dev,
                            "cannot read LANE0 status\n");
                        break;
                }
-               if (v & SATA_PHY_LANE0_OUT_STAT_RX_PLL_STATE)
+               if (pllstat & SATA_PHY_LANE0_OUT_STAT_RX_PLL_STATE)
                        break;
        }
        if (timeout <= 0)