diff options
| author | Steven Rostedt (Red Hat) <[email protected]> | 2016-03-08 17:17:15 -0500 |
|---|---|---|
| committer | Steven Rostedt <[email protected]> | 2016-04-19 18:56:05 -0400 |
| commit | d50c744ecde7ee3ba4d7ffb0e1c55e7a2f6bbc8e (patch) | |
| tree | e1f246a1ee69683eb2a87298e35dad1ae327591d | |
| parent | 93c5f671f25cb7a73492b7a96b426c4fb1efa715 (diff) | |
tracing: Fix unsigned comparison to zero in hist trigger code
Fengguang Wu's bot found two comparisons of unsigned integers to zero. These
were real bugs, as it would miss error conditions returned to zero.
trace_events_hist.c:426:6-9: WARNING: Unsigned expression compared with zero: idx < 0
trace_events_hist.c:568:5-14: WARNING: Unsigned expression compared with zero: n_entries < 0
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
| -rw-r--r-- | kernel/trace/trace_events_hist.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 23df38aab503..f98b6b3a2804 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -734,7 +734,7 @@ static int create_tracing_map_fields(struct hist_trigger_data *hist_data) struct tracing_map *map = hist_data->map; struct ftrace_event_field *field; struct hist_field *hist_field; - unsigned int i, idx; + int i, idx; for_each_hist_field(i, hist_data) { hist_field = hist_data->fields[i]; @@ -1036,7 +1036,7 @@ static int print_entries(struct seq_file *m, { struct tracing_map_sort_entry **sort_entries = NULL; struct tracing_map *map = hist_data->map; - unsigned int i, n_entries; + int i, n_entries; n_entries = tracing_map_sort_entries(map, hist_data->sort_keys, hist_data->n_sort_keys, |