[PATCH 2/2] nfsd: make sure to balance get/put_write_access

[Christoph Hellwig <hch@infradead.org>]

Use a straight goto error label style in nfsd_setattr to make sure
we always do the put_write_access call after we got it earlier.

Signed-off-by: Christoph Hellwig <hch@lst.de>

---
 fs/nfsd/vfs.c |   29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

Index: linux/fs/nfsd/vfs.c
===================================================================
--- linux.orig/fs/nfsd/vfs.c	2013-11-18 11:45:09.971804080 +0100
+++ linux/fs/nfsd/vfs.c	2013-11-18 14:04:55.003632006 +0100
@@ -444,27 +444,28 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 
 	iap->ia_valid |= ATTR_CTIME;
 
-	err = nfserr_notsync;
-	if (!check_guard || guardtime == inode->i_ctime.tv_sec) {
-		host_err = nfsd_break_lease(inode);
-		if (host_err)
-			goto out_nfserr;
-		fh_lock(fhp);
-
-		host_err = notify_change(dentry, iap, NULL);
-		err = nfserrno(host_err);
-		fh_unlock(fhp);
+	if (check_guard && guardtime != inode->i_ctime.tv_sec) {
+		err = nfserr_notsync;
+		goto out_put_write_access;
 	}
+
+	host_err = nfsd_break_lease(inode);
+	if (host_err)
+		goto out_put_write_access_nfserror;
+
+	fh_lock(fhp);
+	host_err = notify_change(dentry, iap, NULL);
+	fh_unlock(fhp);
+
+out_put_write_access_nfserror:
+	err = nfserrno(host_err);
+out_put_write_access:
 	if (size_change)
 		put_write_access(inode);
 	if (!err)
 		commit_metadata(fhp);
 out:
 	return err;
-
-out_nfserr:
-	err = nfserrno(host_err);
-	goto out;
 }
 
 #if defined(CONFIG_NFSD_V2_ACL) || \