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virResctrlAllocGetUnused: Use g_autoptr for variables of virResctrlAlloc type

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Refactor the handling of variables so that the cleanup section can be
sanitized.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2021-03-23 17:43:47 +01:00
parent 05350e451c
commit be291cc49d
1 changed files with 12 additions and 20 deletions
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32
src/util/virresctrl.c
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@ -1874,8 +1874,8 @@ virResctrlAllocNewFromInfo(virResctrlInfoPtr info)
virResctrlAllocPtr
virResctrlAllocGetUnused(virResctrlInfoPtr resctrl)
{
virResctrlAllocPtr ret = NULL;
virResctrlAllocPtr alloc = NULL;
g_autoptr(virResctrlAlloc) ret = NULL;
g_autoptr(virResctrlAlloc) alloc_default = NULL;
struct dirent *ent = NULL;
g_autoptr(DIR) dirp = NULL;
int rv = -1;
@ -1890,17 +1890,18 @@ virResctrlAllocGetUnused(virResctrlInfoPtr resctrl)
if (!ret)
return NULL;
alloc = virResctrlAllocGetDefault(resctrl);
if (!alloc)
goto error;
alloc_default = virResctrlAllocGetDefault(resctrl);
if (!alloc_default)
return NULL;
virResctrlAllocSubtract(ret, alloc);
virObjectUnref(alloc);
virResctrlAllocSubtract(ret, alloc_default);
if (virDirOpen(&dirp, SYSFS_RESCTRL_PATH) < 0)
goto error;
return NULL;
while ((rv = virDirRead(dirp, &ent, SYSFS_RESCTRL_PATH)) > 0) {
g_autoptr(virResctrlAlloc) alloc = NULL;
if (STREQ(ent->d_name, "info"))
continue;
@ -1912,24 +1913,15 @@ virResctrlAllocGetUnused(virResctrlInfoPtr resctrl)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not read schemata file for group %s"),
ent->d_name);
goto error;
return NULL;
}
virResctrlAllocSubtract(ret, alloc);
virObjectUnref(alloc);
alloc = NULL;
}
if (rv < 0)
goto error;
return NULL;
cleanup:
virObjectUnref(alloc);
return ret;
error:
virObjectUnref(ret);
ret = NULL;
goto cleanup;
return g_steal_pointer(&ret);
}