All of lore.kernel.org
 help / color / mirror / Atom feed
From: Adrian Bunk <bunk@stusta.de>
To: neilb@cse.unsw.edu.au
Cc: nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: [RFC: 2.6 patch] include/linux/nfsd/nfsfh.h: fix a NULL
Date: Sun, 12 Nov 2006 14:17:48 +0100	[thread overview]
Message-ID: <20061112131748.GI25057@stusta.de> (raw)

dereference
Reply-To: 
Fcc: =sent-mail

When we know fhp->fh_dentry is NULL, a code path where it's being 
dereferenced isn't a good choice.

Spotted by the coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6/include/linux/nfsd/nfsfh.h.old	2006-11-12 14:13:34.000000000 +0100
+++ linux-2.6/include/linux/nfsd/nfsfh.h	2006-11-12 14:13:49.000000000 +0100
@@ -330,8 +330,7 @@ fh_unlock(struct svc_fh *fhp)
 {
 	if (!fhp->fh_dentry)
 		printk(KERN_ERR "fh_unlock: fh not verified!\n");
-
-	if (fhp->fh_locked) {
+	else if (fhp->fh_locked) {
 		fill_post_wcc(fhp);
 		mutex_unlock(&fhp->fh_dentry->d_inode->i_mutex);
 		fhp->fh_locked = 0;


-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
NFS maillist  -  NFS@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nfs

WARNING: multiple messages have this Message-ID (diff)
From: Adrian Bunk <bunk@stusta.de>
To: neilb@cse.unsw.edu.au
Cc: nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: [RFC: 2.6 patch] include/linux/nfsd/nfsfh.h: fix a NULL
Date: Sun, 12 Nov 2006 14:17:48 +0100	[thread overview]
Message-ID: <20061112131748.GI25057@stusta.de> (raw)

dereference
Reply-To: 
Fcc: =sent-mail

When we know fhp->fh_dentry is NULL, a code path where it's being 
dereferenced isn't a good choice.

Spotted by the coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6/include/linux/nfsd/nfsfh.h.old	2006-11-12 14:13:34.000000000 +0100
+++ linux-2.6/include/linux/nfsd/nfsfh.h	2006-11-12 14:13:49.000000000 +0100
@@ -330,8 +330,7 @@ fh_unlock(struct svc_fh *fhp)
 {
 	if (!fhp->fh_dentry)
 		printk(KERN_ERR "fh_unlock: fh not verified!\n");
-
-	if (fhp->fh_locked) {
+	else if (fhp->fh_locked) {
 		fill_post_wcc(fhp);
 		mutex_unlock(&fhp->fh_dentry->d_inode->i_mutex);
 		fhp->fh_locked = 0;


             reply	other threads:[~2006-11-12 13:17 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-12 13:17 Adrian Bunk [this message]
2006-11-12 13:17 ` [RFC: 2.6 patch] include/linux/nfsd/nfsfh.h: fix a NULL Adrian Bunk
2006-11-12 15:58 ` Trond Myklebust
2006-11-12 15:58   ` [NFS] " Trond Myklebust
2006-11-12 17:48   ` [2.6 patch] include/linux/nfsd/nfsfh.h:fh_unlock(): change an error to a BUG_ON() Adrian Bunk
2006-11-13  4:52     ` Neil Brown
2006-11-13  4:52       ` Neil Brown

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20061112131748.GI25057@stusta.de \
    --to=bunk@stusta.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=neilb@cse.unsw.edu.au \
    --cc=nfs@lists.sourceforge.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.