fsnotify/fdinfo: exportfs_encode_inode_fh() takes pointer as 4th argument

The call to exportfs_encode_inode_fh() takes an pointer
as the 4th argument, so replace the integer 0 with the
NULL pointer.

This fixes the following sparse warning:

fs/notify/fdinfo.c:53:87: warning: Using plain integer as NULL pointer

Link: https://lore.kernel.org/r/20191016095955.3347-1-ben.dooks@codethink.co.uk
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Jan Kara <jack@suse.cz>

diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index 1e2bfd2..ef83f40 100644 (file)
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -50,7 +50,7 @@ static void show_mark_fhandle(struct seq_file *m, struct inode *inode)
        f.handle.handle_bytes = sizeof(f.pad);
        size = f.handle.handle_bytes >> 2;
 
-       ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, 0);
+       ret = exportfs_encode_inode_fh(inode, (struct fid *)f.handle.f_handle, &size, NULL);
        if ((ret == FILEID_INVALID) || (ret < 0)) {
                WARN_ONCE(1, "Can't encode file handler for inotify: %d\n", ret);
                return;