[src/trunk]: src/sys/dev/sdmmc Use correct function to verify if a task has b...

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

details:   https://anonhg.NetBSD.org/src/rev/777e2f659ffe
branches:  trunk
changeset: 965627:777e2f659ffe
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Wed Sep 25 16:21:14 2019 +0000

description:
Use correct function to verify if a task has been queued. Avoids race
that can corrupt the task queue.

diffstat:

 sys/dev/sdmmc/if_bwfm_sdio.c |  7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diffs (22 lines):

diff -r c4cacb900f83 -r 777e2f659ffe sys/dev/sdmmc/if_bwfm_sdio.c
--- a/sys/dev/sdmmc/if_bwfm_sdio.c      Wed Sep 25 15:51:37 2019 +0000
+++ b/sys/dev/sdmmc/if_bwfm_sdio.c      Wed Sep 25 16:21:14 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_bwfm_sdio.c,v 1.5 2019/09/13 11:21:03 mlelstv Exp $ */
+/* $NetBSD: if_bwfm_sdio.c,v 1.6 2019/09/25 16:21:14 mlelstv Exp $ */
 /* $OpenBSD: if_bwfm_sdio.c,v 1.1 2017/10/11 17:19:50 patrick Exp $ */
 /*
  * Copyright (c) 2010-2016 Broadcom Corporation
@@ -1267,10 +1267,9 @@
         DPRINTF(("%s: sdio_intr\n", DEVNAME(sc)));
 
        mutex_enter(&sc->sc_intr_lock);
-       if (!sc->sc_task_queued) {
-               sc->sc_task_queued = true;
+       if (!sdmmc_task_pending(&sc->sc_task))
                sdmmc_add_task(sc->sc_sf[1]->sc, &sc->sc_task);
-       }
+       sc->sc_task_queued = true;
        mutex_exit(&sc->sc_intr_lock);
        return 1;
 }