diff options
Diffstat (limited to 'kernel/trace/trace_events_hist.c')
| -rw-r--r-- | kernel/trace/trace_events_hist.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 5e8970624bce..78788049f3d3 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -744,19 +744,20 @@ static void last_cmd_set(struct trace_event_file *file, char *str) { const char *system = NULL, *name = NULL; struct trace_event_call *call; - int len = 0; + int len; if (!str) return; - len += sizeof(HIST_PREFIX) + strlen(str) + 1; + len = sizeof(HIST_PREFIX) + strlen(str) + 1; kfree(last_cmd); last_cmd = kzalloc(len, GFP_KERNEL); if (!last_cmd) return; strcpy(last_cmd, HIST_PREFIX); - strncat(last_cmd, str, len - sizeof(HIST_PREFIX)); + len -= sizeof(HIST_PREFIX) + 1; + strncat(last_cmd, str, len); if (file) { call = file->event_call; |