util: Don't reference errno when pthread fails.

Pthread library does not set errno.
Pthread library's errno is returned by return value.

Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>

Github-Pull: #19194
Rebased-From: cb38b069b0f41b1a26264784b1c1303c8ac6ab08

1 files changed, 4 insertions, 3 deletions

diff --git a/src/util/system.cpp b/src/util/system.cpp
index 5a3c68aa0c..db1d032916 100644
--- a/src/util/system.cpp
+++ b/src/util/system.cpp
@@ -1236,9 +1236,10 @@ int ScheduleBatchPriority()
 {
 #ifdef SCHED_BATCH
     const static sched_param param{};
-    if (int ret = pthread_setschedparam(pthread_self(), SCHED_BATCH, &param)) {
-        LogPrintf("Failed to pthread_setschedparam: %s\n", strerror(errno));
-        return ret;
+    const int rc = pthread_setschedparam(pthread_self(), SCHED_BATCH, &param);
+    if (rc != 0) {
+        LogPrintf("Failed to pthread_setschedparam: %s\n", strerror(rc));
+        return rc;
     }
     return 0;
 #else