git: 637cc1614ca4 - stable/13 - thread: Ignore errors when copying out during thr_exit()

The branch stable/13 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=637cc1614ca4770ba789522c1ccfdd916a185d9a

commit 637cc1614ca4770ba789522c1ccfdd916a185d9a
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2023-12-26 01:42:04 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2024-01-02 01:12:45 +0000

    thread: Ignore errors when copying out during thr_exit()
    
    It does not seem reasonable to return to userspace after calling
    umtx_thread_exit().
    
    This is in preparation for annotating copyin() and related functions
    with __result_use_check.
    
    Reviewed by:    olce, kib
    MFC after:      1 week
    Differential Revision:  https://reviews.freebsd.org/D43143
    
    (cherry picked from commit f450277f7a608f26624384e046c1987490c51296)
---
 sys/kern/kern_thr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/kern/kern_thr.c b/sys/kern/kern_thr.c
index f5787c0be427..22c869e6869a 100644
--- a/sys/kern/kern_thr.c
+++ b/sys/kern/kern_thr.c
@@ -315,8 +315,8 @@ sys_thr_exit(struct thread *td, struct thr_exit_args *uap)
 
 	/* Signal userland that it can free the stack. */
 	if ((void *)uap->state != NULL) {
-		suword_lwpid(uap->state, 1);
-		kern_umtx_wake(td, uap->state, INT_MAX, 0);
+		(void)suword_lwpid(uap->state, 1);
+		(void)kern_umtx_wake(td, uap->state, INT_MAX, 0);
 	}
 
 	return (kern_thr_exit(td));