init: Fix for issue #2797 (#2799)

* Fix for issue #2797

* Fix for issue #2797

* Fix for issue #2797

1 files changed, 9 insertions, 1 deletions

diff --git a/src/init/initHelpers.cpp b/src/init/initHelpers.cpp
index 2666ed0b..2a296d2e 100644
--- a/src/init/initHelpers.cpp
+++ b/src/init/initHelpers.cpp
@@ -6,7 +6,15 @@ bool Init::isSudo() {
 
 void Init::gainRealTime() {
     const int                minPrio = sched_get_priority_min(SCHED_RR);
-    const struct sched_param param   = {.sched_priority = minPrio};
+    int old_policy;
+    struct sched_param param;
+
+    if (pthread_getschedparam(pthread_self(), &old_policy, &param)) {
+        Debug::log(WARN, "Failed to get old pthread scheduling priority");
+        return;
+    }
+
+    param.sched_priority = minPrio;
 
     if (pthread_setschedparam(pthread_self(), SCHED_RR, &param)) {
         Debug::log(WARN, "Failed to change process scheduling strategy");