m68k: zorro - Kill warn_unused_result warnings

warning: ignoring return value of 'device_register', declared with attribute
warn_unused_result
warning: ignoring return value of 'device_create_file', declared with
attribute warn_unused_result

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

drivers/zorro/zorro-sysfs.c

@@ -77,17 +77,21 @@ static struct bin_attribute zorro_config_attr = {
 	.read = zorro_read_config,
 };
 
-void zorro_create_sysfs_dev_files(struct zorro_dev *z)
+int zorro_create_sysfs_dev_files(struct zorro_dev *z)
 {
 	struct device *dev = &z->dev;
+	int error;
 
 	/* current configuration's attributes */
-	device_create_file(dev, &dev_attr_id);
-	device_create_file(dev, &dev_attr_type);
-	device_create_file(dev, &dev_attr_serial);
-	device_create_file(dev, &dev_attr_slotaddr);
-	device_create_file(dev, &dev_attr_slotsize);
-	device_create_file(dev, &dev_attr_resource);
-	sysfs_create_bin_file(&dev->kobj, &zorro_config_attr);
+	if ((error = device_create_file(dev, &dev_attr_id)) ||
+	    (error = device_create_file(dev, &dev_attr_type)) ||
+	    (error = device_create_file(dev, &dev_attr_serial)) ||
+	    (error = device_create_file(dev, &dev_attr_slotaddr)) ||
+	    (error = device_create_file(dev, &dev_attr_slotsize)) ||
+	    (error = device_create_file(dev, &dev_attr_resource)) ||
+	    (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
+		return error;
+
+	return 0;
 }
 

drivers/zorro/zorro.c

@@ -130,6 +130,7 @@ static int __init zorro_init(void)
 {
     struct zorro_dev *z;
     unsigned int i;
+    int error;
 
     if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
 	return 0;
@@ -140,7 +141,11 @@ static int __init zorro_init(void)
     /* Initialize the Zorro bus */
     INIT_LIST_HEAD(&zorro_bus.devices);
     strcpy(zorro_bus.dev.bus_id, "zorro");
-    device_register(&zorro_bus.dev);
+    error = device_register(&zorro_bus.dev);
+    if (error) {
+	pr_err("Zorro: Error registering zorro_bus\n");
+	return error;
+    }
 
     /* Request the resources */
     zorro_bus.num_resources = AMIGAHW_PRESENT(ZORRO3) ? 4 : 2;
@@ -167,8 +172,14 @@ static int __init zorro_init(void)
 	sprintf(z->dev.bus_id, "%02x", i);
 	z->dev.parent = &zorro_bus.dev;
 	z->dev.bus = &zorro_bus_type;
-	device_register(&z->dev);
-	zorro_create_sysfs_dev_files(z);
+	error = device_register(&z->dev);
+	if (error) {
+	    pr_err("Zorro: Error registering device %s\n", z->name);
+	    continue;
+	}
+	error = zorro_create_sysfs_dev_files(z);
+	if (error)
+	    dev_err(&z->dev, "Error creating sysfs files\n");
     }
 
     /* Mark all available Zorro II memory */

drivers/zorro/zorro.h

@@ -1,4 +1,4 @@
 
 extern void zorro_name_device(struct zorro_dev *z);
-extern void zorro_create_sysfs_dev_files(struct zorro_dev *z);
+extern int zorro_create_sysfs_dev_files(struct zorro_dev *z);