tracing: Remove redundant unread variable ret

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

Link: http://lkml.kernel.org/r/20170823112309.19383-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 1c21d0e2a145a6e180116fc1fd0705ae7e3fdb17..f123b5d0c226239981181aa0b161ca8dda04ed66 100644 (file)
--- 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),