From cb828499b9e7d94abacc0aa78a67f4b8e5234ace Mon Sep 17 00:00:00 2001
From: Neil Brown <neilb@suse.de>
Date: Thu, 16 Oct 2008 14:15:16 +1100
Subject: [PATCH] --- yaml --- r: 116234 b: refs/heads/master c:
 504e518953a330c8d44a95bdd65a5c9f50f1012e h: refs/heads/master v: v3

---
 [refs]                       | 2 +-
 trunk/fs/nfs/nfs4proc.c      | 6 ++++--
 trunk/include/linux/nfs_fs.h | 8 ++++++--
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/[refs] b/[refs]
index b1a7faf93d37..0b6c861ad9cc 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 18de9735300756e3ca9c361ef58409d8561dfe0d
+refs/heads/master: 504e518953a330c8d44a95bdd65a5c9f50f1012e
diff --git a/trunk/fs/nfs/nfs4proc.c b/trunk/fs/nfs/nfs4proc.c
index c910413eaeca..83e700a2b0c0 100644
--- a/trunk/fs/nfs/nfs4proc.c
+++ b/trunk/fs/nfs/nfs4proc.c
@@ -1659,8 +1659,10 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 		struct nfs_open_context *ctx;
 
 		ctx = nfs_file_open_context(sattr->ia_file);
-		cred = ctx->cred;
-		state = ctx->state;
+		if (ctx) {
+			cred = ctx->cred;
+			state = ctx->state;
+		}
 	}
 
 	status = nfs4_do_setattr(inode, cred, fattr, sattr, state);
diff --git a/trunk/include/linux/nfs_fs.h b/trunk/include/linux/nfs_fs.h
index ac8d0233b05c..4eaa8347a0d9 100644
--- a/trunk/include/linux/nfs_fs.h
+++ b/trunk/include/linux/nfs_fs.h
@@ -367,8 +367,12 @@ static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
 
 static inline struct rpc_cred *nfs_file_cred(struct file *file)
 {
-	if (file != NULL)
-		return nfs_file_open_context(file)->cred;
+	if (file != NULL) {
+		struct nfs_open_context *ctx =
+			nfs_file_open_context(file);
+		if (ctx)
+			return ctx->cred;
+	}
 	return NULL;
 }