mmc: host: atmel-mci: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/atmel-mci.c

@@ -579,42 +579,18 @@ static void atmci_init_debugfs(struct atmel_mci_slot *slot)
 	struct mmc_host		*mmc = slot->mmc;
 	struct atmel_mci	*host = slot->host;
 	struct dentry		*root;
-	struct dentry		*node;
 
 	root = mmc->debugfs_root;
 	if (!root)
 		return;
 
-	node = debugfs_create_file("regs", S_IRUSR, root, host,
-				   &atmci_regs_fops);
-	if (IS_ERR(node))
-		return;
-	if (!node)
-		goto err;
-
-	node = debugfs_create_file("req", S_IRUSR, root, slot,
-				   &atmci_req_fops);
-	if (!node)
-		goto err;
-
-	node = debugfs_create_u32("state", S_IRUSR, root, (u32 *)&host->state);
-	if (!node)
-		goto err;
-
-	node = debugfs_create_x32("pending_events", S_IRUSR, root,
-				     (u32 *)&host->pending_events);
-	if (!node)
-		goto err;
-
-	node = debugfs_create_x32("completed_events", S_IRUSR, root,
-				     (u32 *)&host->completed_events);
-	if (!node)
-		goto err;
-
-	return;
-
-err:
-	dev_err(&mmc->class_dev, "failed to initialize debugfs for slot\n");
+	debugfs_create_file("regs", S_IRUSR, root, host, &atmci_regs_fops);
+	debugfs_create_file("req", S_IRUSR, root, slot, &atmci_req_fops);
+	debugfs_create_u32("state", S_IRUSR, root, (u32 *)&host->state);
+	debugfs_create_x32("pending_events", S_IRUSR, root,
+			   (u32 *)&host->pending_events);
+	debugfs_create_x32("completed_events", S_IRUSR, root,
+			   (u32 *)&host->completed_events);
 }
 
 #if defined(CONFIG_OF)