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netmap: fix bug introduced by r349752

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r349752 introduced a NULL pointer reference bug
in the emulated netmap code.

Reported by:	lwhsu
MFC after:	3 days
This commit is contained in:
Vincenzo Maffione 2019-07-13 08:08:25 +00:00
parent 07b57507c9
commit d7143780ce
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=349966
1 changed files with 2 additions and 1 deletions
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3
sys/dev/netmap/netmap_generic.c
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@ -1126,7 +1126,8 @@ generic_netmap_attach(struct ifnet *ifp)
nm_os_generic_set_features(gna);
nm_prinf("Emulated adapter for %s created (prev was %s)", na->name, gna->prev->name);
nm_prinf("Emulated adapter for %s created (prev was %s)", na->name,
gna->prev ? gna->prev->name : "NULL");
return retval;
}