xnu-517.3.15.tar.gz

[apple/xnu.git] / bsd / miscfs / devfs / devfs_vnops.c

diff --git a/bsd/miscfs/devfs/devfs_vnops.c b/bsd/miscfs/devfs/devfs_vnops.c
index 6c25d8044731fabf33daffb4a72e445896731e41..a76b043aa59b1eab6ecd7b7061de97bddc990cb4 100644 (file)
--- a/bsd/miscfs/devfs/devfs_vnops.c
+++ b/bsd/miscfs/devfs/devfs_vnops.c
@@ -1,21 +1,24 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.

  *
  * @APPLE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_LICENSE_HEADER_START@
  * 

- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER

  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.

  * 
  * @APPLE_LICENSE_HEADER_END@
  */
  * 
  * @APPLE_LICENSE_HEADER_END@
  */


@@ -1150,7 +1153,7 @@ devfs_symlink(struct vop_symlink_args *ap)
                 char *a_target;
         } */
 {
                 char *a_target;
         } */
 {

-       struct componentname * cnp = ap->a_cnp;
+       struct componentname * cnp = ap->a_cnp;

        struct vnode *vp = NULL;
        int error = 0;
        devnode_t * dir_p;
        struct vnode *vp = NULL;
        int error = 0;
        devnode_t * dir_p;


@@ -1183,9 +1186,13 @@ devfs_symlink(struct vop_symlink_args *ap)
            goto failure;
        vp = *vpp;
        vput(vp);
            goto failure;
        vp = *vpp;
        vput(vp);

- failure:
-       if ((cnp->cn_flags & SAVESTART) == 0)
-           FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
+failure:
+       if ((cnp->cn_flags & SAVESTART) == 0) {
+               char *tmp = cnp->cn_pnbuf;
+               cnp->cn_pnbuf = NULL;
+               cnp->cn_flags &= ~HASBUF;
+           FREE_ZONE(tmp, cnp->cn_pnlen, M_NAMEI);
+       }

        vput(ap->a_dvp);
        return error;
 }
        vput(ap->a_dvp);
        return error;
 }


@@ -1236,13 +1243,17 @@ devfs_mknod(ap)
        dev_p->dn_uid = cnp->cn_cred->cr_uid;
        dev_p->dn_gid = dir_p->dn_gid;
        dev_p->dn_mode = vap->va_mode;
        dev_p->dn_uid = cnp->cn_cred->cr_uid;
        dev_p->dn_gid = dir_p->dn_gid;
        dev_p->dn_mode = vap->va_mode;

- failure:
+failure:

        if (*vpp) {
            vput(*vpp);
            *vpp = 0;
        }
        if (*vpp) {
            vput(*vpp);
            *vpp = 0;
        }

-       if ((cnp->cn_flags & SAVESTART) == 0)
-           FREE_ZONE(cnp->cn_pnbuf, cnp->cn_pnlen, M_NAMEI);
+       if ((cnp->cn_flags & SAVESTART) == 0) {
+               char *tmp = cnp->cn_pnbuf;
+               cnp->cn_pnbuf = NULL;
+               cnp->cn_flags &= ~HASBUF;
+           FREE_ZONE(tmp, cnp->cn_pnlen, M_NAMEI);
+       }

        vput(dvp);
        return (error);
 }
        vput(dvp);
        return (error);
 }


@@ -1379,20 +1390,6 @@ devfs_readlink(struct vop_readlink_args *ap)
        return error;
 }
 
        return error;
 }
 

-static int
-devfs_abortop(struct vop_abortop_args *ap)
-        /*struct vop_abortop_args {
-                struct vnode *a_dvp;
-                struct componentname *a_cnp;
-        } */
-{
-       if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF) {
-               FREE_ZONE(ap->a_cnp->cn_pnbuf, ap->a_cnp->cn_pnlen, M_NAMEI);
-       }
-       return 0;
-}
-
-

 static int
 devfs_reclaim(struct vop_reclaim_args *ap)
         /*struct vop_reclaim_args {
 static int
 devfs_reclaim(struct vop_reclaim_args *ap)
         /*struct vop_reclaim_args {


@@ -1516,7 +1513,7 @@ static struct vnodeopv_entry_desc devfs_vnodeop_entries[] = {
        { &vop_symlink_desc, (VOPFUNC)devfs_symlink },          /* symlink */
        { &vop_readdir_desc, (VOPFUNC)devfs_readdir },          /* readdir */
        { &vop_readlink_desc, (VOPFUNC)devfs_readlink },        /* readlink */
        { &vop_symlink_desc, (VOPFUNC)devfs_symlink },          /* symlink */
        { &vop_readdir_desc, (VOPFUNC)devfs_readdir },          /* readdir */
        { &vop_readlink_desc, (VOPFUNC)devfs_readlink },        /* readlink */

-       { &vop_abortop_desc, (VOPFUNC)devfs_abortop },          /* abortop */
+       { &vop_abortop_desc, (VOPFUNC)nop_abortop },            /* abortop */

        { &vop_inactive_desc, (VOPFUNC)devfs_inactive },        /* inactive */
        { &vop_reclaim_desc, (VOPFUNC)devfs_reclaim },          /* reclaim */
        { &vop_lock_desc, (VOPFUNC)nop_lock },                  /* lock */
        { &vop_inactive_desc, (VOPFUNC)devfs_inactive },        /* inactive */
        { &vop_reclaim_desc, (VOPFUNC)devfs_reclaim },          /* reclaim */
        { &vop_lock_desc, (VOPFUNC)nop_lock },                  /* lock */