From 435978fda967bccdea1b3bc5f106f6b4862f1afa Mon Sep 17 00:00:00 2001
From: Tomas Glozar <tglozar@redhat.com>
Date: Tue, 7 Jan 2025 15:48:21 +0100
Subject: [PATCH] rtla/osnoise: Distinguish missing workload option

commit 80d3ba1cf51bfbbb3b098434f2b2c95cd7c0ae5c upstream.

osnoise_set_workload returns -1 for both missing OSNOISE_WORKLOAD option
and failure in setting the option.

Return -1 for missing and -2 for failure to distinguish them.

Cc: stable@vger.kernel.org
Cc: John Kacur <jkacur@redhat.com>
Cc: Luis Goncalves <lgoncalv@redhat.com>
Link: https://lore.kernel.org/20250107144823.239782-2-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/tracing/rtla/src/osnoise.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tracing/rtla/src/osnoise.c b/tools/tracing/rtla/src/osnoise.c
index b8ec6c15bccb1..333195dc63d95 100644
--- a/tools/tracing/rtla/src/osnoise.c
+++ b/tools/tracing/rtla/src/osnoise.c
@@ -693,7 +693,7 @@ int osnoise_set_tracing_thresh(struct osnoise_context *context, long long tracin
 
 	retval = osnoise_write_ll_config("tracing_thresh", tracing_thresh);
 	if (retval < 0)
-		return -1;
+		return -2;
 
 	context->tracing_thresh = tracing_thresh;
 
-- 
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