git: 794299ac6876 - stable/15 - netlink: in snl_init_writer() don't overwrite error in case of failure

The branch stable/15 has been updated by glebius:

URL: https://cgit.FreeBSD.org/src/commit/?id=794299ac6876ecdf62e503d3fb05bd388f5c8be7

commit 794299ac6876ecdf62e503d3fb05bd388f5c8be7
Author:     Bruno Silvestre <bruno.silvestre@gmail.com>
AuthorDate: 2025-10-07 05:48:28 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2025-10-15 18:57:46 +0000

    netlink: in snl_init_writer() don't overwrite error in case of failure
    
    PR:     290050
    (cherry picked from commit 488718ff42346888243496c00cbeb42ba004171e)
---
 sys/netlink/netlink_snl.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/netlink/netlink_snl.h b/sys/netlink/netlink_snl.h
index 586716776bc5..ca1169d24b91 100644
--- a/sys/netlink/netlink_snl.h
+++ b/sys/netlink/netlink_snl.h
@@ -1057,14 +1057,14 @@ snl_init_writer(struct snl_state *ss, struct snl_writer *nw)
 {
 	nw->size = SNL_WRITER_BUFFER_SIZE;
 	nw->base = (char *)snl_allocz(ss, nw->size);
-	if (nw->base == NULL) {
+	if (__predict_false(nw->base == NULL)) {
 		nw->error = true;
 		nw->size = 0;
-	}
+	} else
+		nw->error = false;
 
 	nw->offset = 0;
 	nw->hdr = NULL;
-	nw->error = false;
 	nw->ss = ss;
 }