[PATCH] coverity: fs/locks.c flp null check

We're dereferencing `flp' and then we're testing it for NULLness.

Either the compiler accidentally saved us or the existing null-pointer checdk
is redundant.

This defect was found automatically by Coverity Prevent, a static analysis tool.
Signed-off-by: NZaur Kambarov <zkambarov@coverity.com>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

fs/locks.c

@@ -1276,7 +1276,7 @@ int fcntl_getlease(struct file *filp)
  */
 static int __setlease(struct file *filp, long arg, struct file_lock **flp)
 {
-	struct file_lock *fl, **before, **my_before = NULL, *lease = *flp;
+	struct file_lock *fl, **before, **my_before = NULL, *lease;
 	struct dentry *dentry = filp->f_dentry;
 	struct inode *inode = dentry->d_inode;
 	int error, rdlease_count = 0, wrlease_count = 0;
@@ -1287,6 +1287,8 @@ static int __setlease(struct file *filp, long arg, struct file_lock **flp)
 	if (!flp || !(*flp) || !(*flp)->fl_lmops || !(*flp)->fl_lmops->fl_break)
 		goto out;
 
+	lease = *flp;
+
 	error = -EAGAIN;
 	if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0))
 		goto out;