[PATCH][next] tracing: remove redundant unread variable ret

From: Colin King
Date: Wed Aug 23 2017 - 07:23:17 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Integer ret is being assigned but never used and hence it is
redundant. Remove it, fixes clang warning:

trace_events_hist.c:1077:3: warning: Value stored to 'ret' is never read

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
kernel/trace/trace_events_hist.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 1c21d0e2a145..f123b5d0c226 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -1062,7 +1062,7 @@ static void hist_trigger_show(struct seq_file *m,
struct event_trigger_data *data, int n)
{
struct hist_trigger_data *hist_data;
- int n_entries, ret = 0;
+ int n_entries;

if (n > 0)
seq_puts(m, "\n\n");
@@ -1073,10 +1073,8 @@ static void hist_trigger_show(struct seq_file *m,

hist_data = data->private_data;
n_entries = print_entries(m, hist_data);
- if (n_entries < 0) {
- ret = n_entries;
+ if (n_entries < 0)
n_entries = 0;
- }

seq_printf(m, "\nTotals:\n Hits: %llu\n Entries: %u\n Dropped: %llu\n",
(u64)atomic64_read(&hist_data->map->hits),
--
2.14.1