Aren/NetBSD
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set NULL after free.

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This commit is contained in:
nonaka 2017-01-10 04:27:04 +00:00
parent 1eec2c6197
commit d8b884b552
1 changed files with 3 additions and 2 deletions
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5
sys/dev/pci/if_iwm.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_iwm.c,v 1.56 2017/01/09 12:45:49 nonaka Exp $ */
/* $NetBSD: if_iwm.c,v 1.57 2017/01/10 04:27:04 nonaka Exp $ */
/* OpenBSD: if_iwm.c,v 1.148 2016/11/19 21:07:08 stsp Exp */
#define IEEE80211_NO_HT
/*
@ -107,7 +107,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_iwm.c,v 1.56 2017/01/09 12:45:49 nonaka Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_iwm.c,v 1.57 2017/01/10 04:27:04 nonaka Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@ -1332,6 +1332,7 @@ iwm_free_tx_ring(struct iwm_softc *sc, struct iwm_tx_ring *ring)
data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->sc_dmat, data->map);
m_freem(data->m);
data->m = NULL;
}
if (data->map != NULL) {
bus_dmamap_destroy(sc->sc_dmat, data->map);