[PATCH] AFS: Fix compilation warning

[David Howells]

From: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx>

Fix the following warning:

fs/afs/dir.c: In function 'afs_d_revalidate':
fs/afs/dir.c:567: warning: 'fid.vnode' may be used uninitialized in this function
fs/afs/dir.c:567: warning: 'fid.unique' may be used uninitialized in this function

by marking the 'fid' variable as an uninitialized_var.  The problem is that gcc
doesn't always manage to work out that fid is always set on the path through
the function that uses it.

Cc: linux-afs@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx>
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---

 fs/afs/dir.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 5272872..790ba9d 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -566,7 +566,7 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
 static int afs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
 {
 	struct afs_vnode *vnode, *dir;
-	struct afs_fid fid;
+	struct afs_fid uninitialized_var(fid);
 	struct dentry *parent;
 	struct key *key;
 	void *dir_version;

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