In addition, fix a typo in the error message generated when the
specified duration is invalid.

Signed-off-by: Eder Zulian <ezul...@redhat.com>
---
 tools/tracing/rtla/src/osnoise_hist.c  | 4 ++--
 tools/tracing/rtla/src/timerlat_hist.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/tracing/rtla/src/osnoise_hist.c 
b/tools/tracing/rtla/src/osnoise_hist.c
index 214e2c93fde0..9017be674810 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -454,7 +454,7 @@ static void osnoise_hist_usage(char *usage)
                "  usage: rtla osnoise hist [-h] [-D] [-d s] [-a us] [-p us] 
[-r us] [-s us] [-S us] \\",
                "         [-T us] [-t[file]] [-e sys[:event]] [--filter 
<filter>] [--trigger <trigger>] \\",
                "         [-c cpu-list] [-H cpu-list] [-P priority] [-b N] [-E 
N] [--no-header] [--no-summary] \\",
-               "         [--no-index] [--with-zeros] [-C[=cgroup_name]] 
[--warm-up]",
+               "         [--no-index] [--with-zeros] [-C[=cgroup_name]] 
[--warm-up s]",
                "",
                "         -h/--help: print this menu",
                "         -a/--auto: set automatic trace mode, stopping the 
session if argument in us sample is hit",
@@ -603,7 +603,7 @@ static struct osnoise_hist_params
                case 'd':
                        params->duration = parse_seconds_duration(optarg);
                        if (!params->duration)
-                               osnoise_hist_usage("Invalid -D duration\n");
+                               osnoise_hist_usage("Invalid -d duration\n");
                        break;
                case 'e':
                        tevent = trace_event_alloc(optarg);
diff --git a/tools/tracing/rtla/src/timerlat_hist.c 
b/tools/tracing/rtla/src/timerlat_hist.c
index a3907c390d67..2d657ea281a4 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -666,7 +666,7 @@ static void timerlat_hist_usage(char *usage)
                "         -c/--cpus cpus: run the tracer only on the given 
cpus",
                "         -H/--house-keeping cpus: run rtla control threads 
only on the given cpus",
                "         -C/--cgroup[=cgroup_name]: set cgroup, if no 
cgroup_name is passed, the rtla's cgroup will be inherited",
-               "         -d/--duration time[m|h|d]: duration of the session in 
seconds",
+               "         -d/--duration time[s|m|h|d]: duration of the session",
                "            --dump-tasks: prints the task running on all CPUs 
if stop conditions are met (depends on !--no-aa)",
                "         -D/--debug: print debug info",
                "         -t/--trace[file]: save the stopped trace to 
[file|timerlat_trace.txt]",
@@ -827,7 +827,7 @@ static struct timerlat_hist_params
                case 'd':
                        params->duration = parse_seconds_duration(optarg);
                        if (!params->duration)
-                               timerlat_hist_usage("Invalid -D duration\n");
+                               timerlat_hist_usage("Invalid -d duration\n");
                        break;
                case 'e':
                        tevent = trace_event_alloc(optarg);
-- 
2.46.0


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