Btrfs: The file argument for fsync() is never null

The "file" argument for fsync is never null so we can remove this check.

What drew my attention here is that 7ea8085910e: "drop unused dentry
argument to ->fsync" introduced an unconditional dereference at the
start of the function and that generated a smatch warning.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index ce0cd29..7f29464 100644 (file)
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1139,7 +1139,7 @@ int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync)
        /*
         * ok we haven't committed the transaction yet, lets do a commit
         */
-       if (file && file->private_data)
+       if (file->private_data)
                btrfs_ioctl_trans_end(file);
 
        trans = btrfs_start_transaction(root, 0);