Index: sys/sys/mount.h
===================================================================
--- sys/sys/mount.h	(wersja 211283)
+++ sys/sys/mount.h	(kopia robocza)
@@ -730,7 +730,7 @@
 int	vfs_busy(struct mount *, int);
 int	vfs_export			 /* process mount export info */
 	    (struct mount *, struct export_args *);
-int	vfs_allocate_syncvnode(struct mount *);
+void	vfs_allocate_syncvnode(struct mount *);
 int	vfs_donmount(struct thread *td, int fsflags, struct uio *fsoptions);
 void	vfs_getnewfsid(struct mount *);
 struct cdev *vfs_getrootfsid(struct mount *);
Index: sys/kern/vfs_subr.c
===================================================================
--- sys/kern/vfs_subr.c	(wersja 211283)
+++ sys/kern/vfs_subr.c	(kopia robocza)
@@ -3365,7 +3365,7 @@
 /*
  * Create a new filesystem syncer vnode for the specified mount point.
  */
-int
+void
 vfs_allocate_syncvnode(struct mount *mp)
 {
 	struct vnode *vp;
@@ -3374,16 +3374,15 @@
 	int error;
 
 	/* Allocate a new vnode */
-	if ((error = getnewvnode("syncer", mp, &sync_vnodeops, &vp)) != 0) {
-		mp->mnt_syncer = NULL;
-		return (error);
-	}
+	error = getnewvnode("syncer", mp, &sync_vnodeops, &vp);
+	if (error != 0)
+		panic("vfs_allocate_syncvnode: getnewvnode() failed");
 	vp->v_type = VNON;
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	vp->v_vflag |= VV_FORCEINSMQ;
 	error = insmntque(vp, mp);
 	if (error != 0)
-		panic("vfs_allocate_syncvnode: insmntque failed");
+		panic("vfs_allocate_syncvnode: insmntque() failed");
 	vp->v_vflag &= ~VV_FORCEINSMQ;
 	VOP_UNLOCK(vp, 0);
 	/*
@@ -3411,7 +3410,6 @@
 	mtx_unlock(&sync_mtx);
 	BO_UNLOCK(bo);
 	mp->mnt_syncer = vp;
-	return (0);
 }
 
 /*
Index: sys/kern/vfs_mount.c
===================================================================
--- sys/kern/vfs_mount.c	(wersja 211900)
+++ sys/kern/vfs_mount.c	(kopia robocza)
@@ -1036,7 +1036,7 @@
 		MNT_IUNLOCK(mp);
 		if ((mp->mnt_flag & MNT_RDONLY) == 0) {
 			if (mp->mnt_syncer == NULL)
-				error = vfs_allocate_syncvnode(mp);
+				vfs_allocate_syncvnode(mp);
 		} else {
 			if (mp->mnt_syncer != NULL)
 				vrele(mp->mnt_syncer);
@@ -1078,10 +1078,8 @@
 		mountcheckdirs(vp, newdp);
 		vrele(newdp);
 		if ((mp->mnt_flag & MNT_RDONLY) == 0)
-			error = vfs_allocate_syncvnode(mp);
+			vfs_allocate_syncvnode(mp);
 		vfs_unbusy(mp);
-		if (error)
-			vrele(vp);
 	} else {
 		vfs_unbusy(mp);
 		vfs_mount_destroy(mp);
@@ -1311,7 +1309,7 @@
 		mp->mnt_kern_flag &= ~MNTK_NOINSMNTQ;
 		if ((mp->mnt_flag & MNT_RDONLY) == 0 && mp->mnt_syncer == NULL) {
 			MNT_IUNLOCK(mp);
-			(void) vfs_allocate_syncvnode(mp);
+			vfs_allocate_syncvnode(mp);
 			MNT_ILOCK(mp);
 		}
 		mp->mnt_kern_flag &= ~(MNTK_UNMOUNT | MNTK_UNMOUNTF);