fix error handling for sched_setscheduler call

(cherry picked from commit a05caac79a3589e9125596a9d4b20d64b0169e65)

0001-alsactl-fix-error-handling-for-sched_setscheduler-ca.patch

@@ -0,0 +1,39 @@
+From d2bf87608a1c3f2d62ceb9300a74e9006394c678 Mon Sep 17 00:00:00 2001
+From: herengui <herengui@kylinsec.com.cn>
+Date: Wed, 31 May 2023 15:01:33 +0800
+Subject: [PATCH] alsactl: fix error handling for sched_setscheduler() call
+MIME-Version: 1.0
+Content-Type: text/plain; charset=utf-8
+Content-Transfer-Encoding: 8bit
+
+As man page says: "If successful, the sched_setparam() function shall return zero."
+
+Without update I got this output in the syslog (journalctl):
+abr 16 09:25:30 mypc alsactl[1652]: alsactl 1.2.2 daemon started
+abr 16 09:25:30 mypc alsactl[1652]: /usr/bin/alsactl: do_nice:165sched_setparam failed: No such file or directory
+
+If sched_setscheduler() returns 0, so it means that the call was successful.
+
+Signed-off-by: Oscar Megía <megia.oscar@gmail.com>
+Signed-off-by: Jaroslav Kysela <perex@perex.cz>
+
+---
+ alsactl/alsactl.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/alsactl/alsactl.c b/alsactl/alsactl.c
+index dfb1db7..60d3945 100644
+--- a/alsactl/alsactl.c
++++ b/alsactl/alsactl.c
+@@ -161,7 +161,7 @@ static void do_nice(int use_nice, int sched_idle)
+ 	if (sched_idle) {
+ 		if (sched_getparam(0, &sched_param) >= 0) {
+ 			sched_param.sched_priority = 0;
+-			if (!sched_setscheduler(0, SCHED_IDLE, &sched_param))
++			if (sched_setscheduler(0, SCHED_IDLE, &sched_param) < 0)
+ 				error("sched_setparam failed: %s", strerror(errno));
+ 		} else {
+ 			error("sched_getparam failed: %s", strerror(errno));
+-- 
+2.40.1
+

alsa-utils.spec

@@ -1,6 +1,6 @@
 Name:                alsa-utils
 Version:             1.2.2
-Release:             2
+Release:             3
 Summary:             Advanced linux sound architecture (ALSA) utility to the Linux operating system.
 License:             GPLv2+
 URL:                 http://www.alsa-project.org/
@@ -18,6 +18,7 @@ Provides:            alsa-ucm-utils = %{version}-%{release}
 Obsoletes:           alsa-ucm-utils < %{version}-%{release}
 Provides:            alsa-topology-utils = %{version}-%{release}
 Obsoletes:           alsa-topology-utils < %{version}-%{release}
+Patch0001:           0001-alsactl-fix-error-handling-for-sched_setscheduler-ca.patch
 
 %description
 This package provides command line utilities for audio and MIDI functionality
@@ -116,6 +117,9 @@ fi
 %doc README.md TODO
 
 %changelog
+* Mon Aug 7 2023 panchenbo <panchenbo@kylinsec.com.cn> - 1.2.2-3
+- fix error handling for sched_setscheduler call
+
 * Tue Apr 28 2020 Guoshuai Sun <sunguoshuai@huawei.com> - 1.2.2-2
 - Update to version 1.2.2