m68k: dio - 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>

1 files changed, 15 insertions, 3 deletions

diff --git a/drivers/dio/dio.c b/drivers/dio/dio.c
index 07f274f853d9..10c3c498358c 100644
--- a/drivers/dio/dio.c
+++ b/drivers/dio/dio.c
@@ -173,6 +173,7 @@ static int __init dio_init(void)
         mm_segment_t fs;
         int i;
         struct dio_dev *dev;
+        int error;
 
         if (!MACH_IS_HP300)
                 return 0;
@@ -182,7 +183,11 @@ static int __init dio_init(void)
         /* Initialize the DIO bus */ 
         INIT_LIST_HEAD(&dio_bus.devices);
         strcpy(dio_bus.dev.bus_id, "dio");
-        device_register(&dio_bus.dev);
+        error = device_register(&dio_bus.dev);
+        if (error) {
+                pr_err("DIO: Error registering dio_bus\n");
+                return error;
+        }
 
         /* Request all resources */
         dio_bus.num_resources = (hp300_model == HP_320 ? 1 : 2);
@@ -252,8 +257,15 @@ static int __init dio_init(void)
 
                 if (scode >= DIOII_SCBASE)
                         iounmap(va);
-                device_register(&dev->dev);
-                dio_create_sysfs_dev_files(dev);
+                error = device_register(&dev->dev);
+                if (error) {
+                        pr_err("DIO: Error registering device %s\n",
+                               dev->name);
+                        continue;
+                }
+                error = dio_create_sysfs_dev_files(dev);
+                if (error)
+                        dev_err(&dev->dev, "Error creating sysfs files\n");
         }
         return 0;
 }