media: saa7164: convert to use DEFINE_SEQ_ATTRIBUTE macro

Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code.
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/pci/saa7164/saa7164-core.c

@@ -1139,32 +1139,21 @@ static int saa7164_seq_show(struct seq_file *m, void *v)
 	return 0;
 }
 
-static const struct seq_operations saa7164_seq_ops = {
+static const struct seq_operations saa7164_sops = {
 	.start = saa7164_seq_start,
 	.next = saa7164_seq_next,
 	.stop = saa7164_seq_stop,
 	.show = saa7164_seq_show,
 };
 
-static int saa7164_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &saa7164_seq_ops);
-}
-
-static const struct file_operations saa7164_operations = {
-	.owner          = THIS_MODULE,
-	.open           = saa7164_open,
-	.read           = seq_read,
-	.llseek         = seq_lseek,
-	.release        = seq_release,
-};
+DEFINE_SEQ_ATTRIBUTE(saa7164);
 
 static struct dentry *saa7614_dentry;
 
 static void __init saa7164_debugfs_create(void)
 {
 	saa7614_dentry = debugfs_create_file("saa7164", 0444, NULL, NULL,
-					     &saa7164_operations);
+					     &saa7164_fops);
 }
 
 static void __exit saa7164_debugfs_remove(void)