External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-07-12 12:55:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

virsh: Resolve Coverity NEGATIVE_RETURNS

Browse Source 
Coverity notes that after we VIR_ALLOC_N(params, nparams) a failed call to
virDomainGetCPUStats could result in nparams being set to -1. In that case,
the subsequent virTypedParamsFree in cleanup will pass -1 which isn't good.

Use the returned value as the number of stats to display in the loop as
it will be the value reported from the hypervisor and may be less than
nparams which is OK

Signed-off-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
John Ferlan 2014-09-04 17:08:48 -04:00
parent 58252332eb
commit be365d8dff
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
tools/virsh-domain.c
View File

@ -6734,7 +6734,7 @@ cmdCPUStats(vshControl *ctl, const vshCmd *cmd)
{
virDomainPtr dom;
virTypedParameterPtr params = NULL;
int pos, max_id, cpu = 0, show_count = -1, nparams = 0;
int pos, max_id, cpu = 0, show_count = -1, nparams = 0, stats_per_cpu;
size_t i, j;
bool show_total = false, show_per_cpu = false;
unsigned int flags = 0;
@ -6853,11 +6853,12 @@ cmdCPUStats(vshControl *ctl, const vshCmd *cmd)
goto cleanup;
/* passing start_cpu == -1 gives us domain's total status */
if ((nparams = virDomainGetCPUStats(dom, params, nparams, -1, 1, flags)) < 0)
if ((stats_per_cpu = virDomainGetCPUStats(dom, params, nparams,
-1, 1, flags)) < 0)
goto failed_stats;
vshPrint(ctl, _("Total:\n"));
for (i = 0; i < nparams; i++) {
for (i = 0; i < stats_per_cpu; i++) {
vshPrint(ctl, "\t%-12s ", params[i].field);
if ((STREQ(params[i].field, VIR_DOMAIN_CPU_STATS_CPUTIME) ||
STREQ(params[i].field, VIR_DOMAIN_CPU_STATS_USERTIME) ||