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-rw-r--r--drivers/dio/dio-sysfs.c16
-rw-r--r--drivers/dio/dio.c18
-rw-r--r--include/linux/dio.h2
3 files changed, 26 insertions, 10 deletions
diff --git a/drivers/dio/dio-sysfs.c b/drivers/dio/dio-sysfs.c
index f46463038847..91d5f4da8769 100644
--- a/drivers/dio/dio-sysfs.c
+++ b/drivers/dio/dio-sysfs.c
@@ -63,15 +63,19 @@ static ssize_t dio_show_resource(struct device *dev, struct device_attribute *at
}
static DEVICE_ATTR(resource, S_IRUGO, dio_show_resource, NULL);
-void dio_create_sysfs_dev_files(struct dio_dev *d)
+int dio_create_sysfs_dev_files(struct dio_dev *d)
{
struct device *dev = &d->dev;
+ int error;
/* current configuration's attributes */
- device_create_file(dev, &dev_attr_id);
- device_create_file(dev, &dev_attr_ipl);
- device_create_file(dev, &dev_attr_secid);
- device_create_file(dev, &dev_attr_name);
- device_create_file(dev, &dev_attr_resource);
+ if ((error = device_create_file(dev, &dev_attr_id)) ||
+ (error = device_create_file(dev, &dev_attr_ipl)) ||
+ (error = device_create_file(dev, &dev_attr_secid)) ||
+ (error = device_create_file(dev, &dev_attr_name)) ||
+ (error = device_create_file(dev, &dev_attr_resource)))
+ return error;
+
+ return 0;
}
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;
}
diff --git a/include/linux/dio.h b/include/linux/dio.h
index 1e65ebc2a3db..b2dd31ca1710 100644
--- a/include/linux/dio.h
+++ b/include/linux/dio.h
@@ -241,7 +241,7 @@ struct dio_driver {
extern int dio_find(int deviceid);
extern unsigned long dio_scodetophysaddr(int scode);
-extern void dio_create_sysfs_dev_files(struct dio_dev *);
+extern int dio_create_sysfs_dev_files(struct dio_dev *);
/* New-style probing */
extern int dio_register_driver(struct dio_driver *);

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