Hi David,
On 10/07/2015 09:41 PM, David Ahern wrote:
On 10/6/15 8:25 PM, Hemant Kumar wrote:
@@ -358,7 +357,12 @@ static bool handle_end_event(struct
perf_kvm_stat *kvm,
time_diff = sample->time - time_begin;
if (kvm->duration && time_diff > kvm->duration) {
- char decode[DECODE_STR_LEN];
+ char *decode = zalloc(decode_str_len);
decode can still be a stack variable even with variable length.
Yeah, we can do that. But, I am not sure whether its a standard way.
+
+ if (!decode) {
+ pr_err("Not enough memory\n");
+ return false;
+ }
kvm->events_ops->decode_key(kvm, &event->key, decode);
if (!skip_event(decode)) {
@@ -366,6 +370,7 @@ static bool handle_end_event(struct perf_kvm_stat
*kvm,
sample->time, sample->pid, vcpu_record->vcpu_id,
decode, time_diff/1000);
}
+ free(decode);
}
return update_kvm_event(event, vcpu, time_diff);
@@ -386,7 +391,8 @@ struct vcpu_event_record *per_vcpu_record(struct
thread *thread,
-----8<-----
@@ -575,7 +581,7 @@ static void show_timeofday(void)
static void print_result(struct perf_kvm_stat *kvm)
{
- char decode[DECODE_STR_LEN];
+ char *decode;
and a stack variable here too.
Same here.
David
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--
Thanks,
Hemant Kumar
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