From 74f44e9118c6128d583e17eb9c7f6c28741e03b6 Mon Sep 17 00:00:00 2001
From: alfred <alfred@FreeBSD.org>
Date: Fri, 1 Feb 2002 19:19:54 +0000
Subject: Avoid lock order reversal filedesc/Giant when calling FREE() in
 fdalloc by unlocking the filedesc before calling FREE().

Submitted by: bde
---
 sys/kern/kern_descrip.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sys')

diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c
index 531b67f..7628d5a 100644
--- a/sys/kern/kern_descrip.c
+++ b/sys/kern/kern_descrip.c
@@ -956,9 +956,11 @@ fdalloc(td, want, result)
 		fdp->fd_nfiles = nfiles;
 		fdexpand++;
 		if (oldofile != NULL) {
+			FILEDESC_UNLOCK(fdp);
 			mtx_lock(&Giant);
 			FREE(oldofile, M_FILEDESC);
 			mtx_unlock(&Giant);
+			FILEDESC_LOCK(fdp);
 		}
 	}
 	return (0);
-- 
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