package/xenomai: fix build with gcc >= 12

Fix the following build failure with gcc >= 12:

task.c: In function 't_start':
task.c:398:16: error: 'ret' may be used uninitialized [-Werror=maybe-uninitialized]
  398 |         return ret;
      |                ^~~
task.c:364:13: note: 'ret' was declared here
  364 |         int ret;
      |             ^~~
task.c: In function 't_resume':
task.c:444:16: error: 'ret' may be used uninitialized [-Werror=maybe-uninitialized]
  444 |         return ret;
      |                ^~~
task.c:428:13: note: 'ret' was declared here
  428 |         int ret;
      |             ^~~

Fixes:
 - http://autobuild.buildroot.org/results/bc1b40de22e563b704ad7f20b6bf4d1f73a6ed8a

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/xenomai/3.0.10/0004-lib-psos-task.c-fix-build-with-gcc-12.patch

@@ -0,0 +1,56 @@
+From 6c6da9e6d75ccfaa83c1efe14211f080c14181c6 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Sun, 3 Dec 2023 15:28:50 +0100
+Subject: [PATCH] lib/psos/task.c: fix build with gcc >= 12
+
+Fix the following build failure with gcc >= 12:
+
+task.c: In function 't_start':
+task.c:398:16: error: 'ret' may be used uninitialized [-Werror=maybe-uninitialized]
+  398 |         return ret;
+      |                ^~~
+task.c:364:13: note: 'ret' was declared here
+  364 |         int ret;
+      |             ^~~
+task.c: In function 't_resume':
+task.c:444:16: error: 'ret' may be used uninitialized [-Werror=maybe-uninitialized]
+  444 |         return ret;
+      |                ^~~
+task.c:428:13: note: 'ret' was declared here
+  428 |         int ret;
+      |             ^~~
+
+Fixes:
+ - http://autobuild.buildroot.org/results/bc1b40de22e563b704ad7f20b6bf4d1f73a6ed8a
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Upstream: https://lore.kernel.org/xenomai/20231203144307.1940139-1-fontaine.fabrice@gmail.com/T/#u
+---
+ lib/psos/task.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/lib/psos/task.c b/lib/psos/task.c
+index f678be61d..27bcc28a9 100644
+--- a/lib/psos/task.c
++++ b/lib/psos/task.c
+@@ -362,7 +362,7 @@ u_long t_start(u_long tid,
+ {
+ 	struct psos_task *task;
+ 	struct service svc;
+-	int ret;
++	int ret = SUCCESS;
+ 
+ 	CANCEL_DEFER(svc);
+ 
+@@ -426,7 +426,7 @@ u_long t_resume(u_long tid)
+ {
+ 	struct psos_task *task;
+ 	struct service svc;
+-	int ret;
++	int ret = SUCCESS;
+ 
+ 	CANCEL_DEFER(svc);
+ 
+-- 
+2.42.0
+