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interface: drop dead code

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Coverity detected that ifaceGetNthParent had already dereferenced
'nth' prior to the conditional; all callers already complied with
passing a non-NULL pointer so make this part of the contract.

* src/util/interface.h (ifaceGetNthParent): Add annotations.
* src/util/interface.c (ifaceGetNthParent): Drop useless null check.
This commit is contained in:
Eric Blake 2011-08-02 16:08:05 -06:00
parent 0634b62336
commit d69b79ab72
2 changed files with 5 additions and 3 deletions
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3
src/util/interface.c
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@ -1060,8 +1060,7 @@ ifaceGetNthParent(int ifindex, const char *ifname, unsigned int nthParent,
i++;
}
if (nth)
*nth = i - 1;
*nth = i - 1;
return rc;
}

5
src/util/interface.h
View File

@ -1,6 +1,7 @@
/*
* interface.h: interface helper APIs for libvirt
*
* Copyright (C) 2011 Red Hat, Inc.
* Copyright (C) 2010 IBM Corporation, Inc.
*
* See COPYING.LIB for the License of this software
@ -67,7 +68,9 @@ int ifaceMacvtapLinkDump(bool nltarget_kernel, const char *ifname, int ifindex,
int ifaceGetNthParent(int ifindex, const char *ifname, unsigned int nthParent,
int *parent_ifindex, char *parent_ifname,
unsigned int *nth);
unsigned int *nth)
ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5)
ATTRIBUTE_NONNULL(6);
int ifaceReplaceMacAddress(const unsigned char *macaddress,
const char *linkdev,