diff options
| -rw-r--r-- | balloon.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/balloon.c b/balloon.c index 5200565cb2..f56fdc1c4b 100644 --- a/balloon.c +++ b/balloon.c @@ -140,6 +140,7 @@ int do_info_balloon(Monitor *mon, MonitorCompletion cb, void *opaque) int do_balloon(Monitor *mon, const QDict *params, MonitorCompletion cb, void *opaque) { + int64_t target; int ret; if (kvm_enabled() && !kvm_has_sync_mmu()) { @@ -147,7 +148,12 @@ int do_balloon(Monitor *mon, const QDict *params, return -1; } - ret = qemu_balloon(qdict_get_int(params, "value")); + target = qdict_get_int(params, "value"); + if (target <= 0) { + qerror_report(QERR_INVALID_PARAMETER_VALUE, "target", "a size"); + return -1; + } + ret = qemu_balloon(target); if (ret == 0) { qerror_report(QERR_DEVICE_NOT_ACTIVE, "balloon"); return -1; |