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authorDmitry Torokhov <dtor_core@ameritech.net>2005-04-29 01:23:47 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2005-06-20 15:15:02 -0700
commit4a0c20bf8c0fe2116f8fd7d3da6122bf8a01f026 (patch)
tree48b6108a889f7cc007633c4d7d6f2c9fafe18082 /drivers/base
parentc76d0abd07a9c9cf72bbb5b641e1e97f92ea8f3e (diff)
[PATCH] sysfs: (driver/base) if show/store is missing return -EIO
sysfs: fix drivers/base so if an attribute doesn't implement show or store method read/write will return -EIO instead of 0. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/bus.c4
-rw-r--r--drivers/base/class.c4
-rw-r--r--drivers/base/core.c4
-rw-r--r--drivers/base/sys.c4
4 files changed, 8 insertions, 8 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 3cb04bb04c2b..80ce88de56fa 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -36,7 +36,7 @@ drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
{
struct driver_attribute * drv_attr = to_drv_attr(attr);
struct device_driver * drv = to_driver(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (drv_attr->show)
ret = drv_attr->show(drv, buf);
@@ -49,7 +49,7 @@ drv_attr_store(struct kobject * kobj, struct attribute * attr,
{
struct driver_attribute * drv_attr = to_drv_attr(attr);
struct device_driver * drv = to_driver(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (drv_attr->store)
ret = drv_attr->store(drv, buf, count);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index ff33ebbf1dc7..344b8cd73901 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -26,7 +26,7 @@ class_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
{
struct class_attribute * class_attr = to_class_attr(attr);
struct class * dc = to_class(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (class_attr->show)
ret = class_attr->show(dc, buf);
@@ -39,7 +39,7 @@ class_attr_store(struct kobject * kobj, struct attribute * attr,
{
struct class_attribute * class_attr = to_class_attr(attr);
struct class * dc = to_class(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (class_attr->store)
ret = class_attr->store(dc, buf, count);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 32f3f09a42e0..a293a788abd4 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -36,7 +36,7 @@ dev_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
{
struct device_attribute * dev_attr = to_dev_attr(attr);
struct device * dev = to_dev(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (dev_attr->show)
ret = dev_attr->show(dev, buf);
@@ -49,7 +49,7 @@ dev_attr_store(struct kobject * kobj, struct attribute * attr,
{
struct device_attribute * dev_attr = to_dev_attr(attr);
struct device * dev = to_dev(kobj);
- ssize_t ret = 0;
+ ssize_t ret = -EIO;
if (dev_attr->store)
ret = dev_attr->store(dev, buf, count);
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 9102e3756f95..f37a13de804a 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -37,7 +37,7 @@ sysdev_show(struct kobject * kobj, struct attribute * attr, char * buffer)
if (sysdev_attr->show)
return sysdev_attr->show(sysdev, buffer);
- return 0;
+ return -EIO;
}
@@ -50,7 +50,7 @@ sysdev_store(struct kobject * kobj, struct attribute * attr,
if (sysdev_attr->store)
return sysdev_attr->store(sysdev, buffer, count);
- return 0;
+ return -EIO;
}
static struct sysfs_ops sysfs_ops = {