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iwm(4): Fix possible null pointer indirection

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Obtained from:	DragonFlyBSD (obtained from Haiku)
MFC after:	1 week
This commit is contained in:
Kyle Evans 2019-01-21 01:45:35 +00:00
parent c15f336dae
commit afbc939b81
1 changed files with 2 additions and 1 deletions
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3
sys/dev/iwm/if_iwm.c
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@ -1033,7 +1033,8 @@ iwm_reset_rx_ring(struct iwm_softc *sc, struct iwm_rx_ring *ring)
* The hw rx ring index in shared memory must also be cleared,
* otherwise the discrepancy can cause reprocessing chaos.
*/
memset(sc->rxq.stat, 0, sizeof(*sc->rxq.stat));
if (sc->rxq.stat)
memset(sc->rxq.stat, 0, sizeof(*sc->rxq.stat));
}
static void