git: 3ff2b417a0c1 - stable/14 - msi_alloc(): do not leak msi_lock in error case

From: Konstantin Belousov <kib_at_FreeBSD.org>
Date: Wed, 11 Sep 2024 08:44:37 UTC
The branch stable/14 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=3ff2b417a0c193379a982b9b95e1d52456c0efe3

commit 3ff2b417a0c193379a982b9b95e1d52456c0efe3
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2024-08-27 02:28:10 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2024-09-11 08:44:00 +0000

    msi_alloc(): do not leak msi_lock in error case
    
    (cherry picked from commit 5681ddfd9f80c3aa25f900a1bcaa69b36a4e9e27)
---
 sys/x86/x86/msi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/x86/x86/msi.c b/sys/x86/x86/msi.c
index 888635cba3f4..177bd7868ec4 100644
--- a/sys/x86/x86/msi.c
+++ b/sys/x86/x86/msi.c
@@ -480,6 +480,7 @@ again:
 	if (error != 0) {
 		for (i = 0; i < count; i++)
 			apic_free_vector(cpu, vector + i, irqs[i]);
+		mtx_unlock(&msi_lock);
 		free(mirqs, M_MSI);
 		return (error);
 	}