ocfs2: Avoid a gcc warning in ocfs2_wipe_inode().

gcc warns that a variable is uninitialized.  It's actually handled, but
an early return fools gcc.  Let's just initialize the variable to a
garbage value that will crash if the usage is ever broken.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 83fe1d3..af18988 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -725,7 +725,7 @@
 static int ocfs2_wipe_inode(struct inode *inode,
 			    struct buffer_head *di_bh)
 {
-	int status, orphaned_slot;
+	int status, orphaned_slot = -1;
 	struct inode *orphan_dir_inode = NULL;
 	struct buffer_head *orphan_dir_bh = NULL;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);