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bwn(4): Fix trivial null dereference

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Reported by:	PVS-Studio
Sponsored by:	Dell EMC Isilon
This commit is contained in:
Conrad Meyer 2017-04-06 17:08:59 +00:00
parent 8d64ff50b3
commit 7013b24d32
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=316582
1 changed files with 7 additions and 2 deletions
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9
sys/dev/bwn/if_bwn.c
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@ -6754,10 +6754,15 @@ static void
bwn_txpwr(void *arg, int npending)
{
struct bwn_mac *mac = arg;
struct bwn_softc *sc = mac->mac_sc;
struct bwn_softc *sc;
if (mac == NULL)
return;
sc = mac->mac_sc;
BWN_LOCK(sc);
if (mac && mac->mac_status >= BWN_MAC_STATUS_STARTED &&
if (mac->mac_status >= BWN_MAC_STATUS_STARTED &&
mac->mac_phy.set_txpwr != NULL)
mac->mac_phy.set_txpwr(mac);
BWN_UNLOCK(sc);