git: ed410b78edc5 - main - EVFILT_SIGNAL: do not use target process pointer on detach

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=ed410b78edc53e17b5a3e93ace2adbeb3a734ae9

commit ed410b78edc53e17b5a3e93ace2adbeb3a734ae9
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2023-11-28 12:51:54 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2023-11-28 17:29:58 +0000

    EVFILT_SIGNAL: do not use target process pointer on detach
    
    It is enough to know knlist to remove from it, and the list is
    autodestroyed on last removal.
    
    PR:     275286
    Reviewed by:    markj
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D42777
---
 sys/kern/kern_sig.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index 230564adf823..a2ca74ac9183 100644
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -4296,9 +4296,7 @@ filt_sigattach(struct knote *kn)
 static void
 filt_sigdetach(struct knote *kn)
 {
-	struct proc *p = kn->kn_ptr.p_proc;
-
-	knlist_remove(p->p_klist, kn, 0);
+	knlist_remove(kn->kn_knlist, kn, 0);
 }
 
 /*