staging: most: core: remove read option from remove_link

The attribute "remove_link" returns the latest link that has been removed
of a certain channel. Since this piece information isn't particulary
useful this patch is going to remove it.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index 9c15b63..6507263 100644 (file)
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -763,7 +763,6 @@ struct most_aim_obj {
        struct kobject kobj;
        struct list_head list;
        struct most_aim *driver;
-       char remove_link[STRING_SIZE];
 };
 
 #define to_aim_obj(d) container_of(d, struct most_aim_obj, kobj)
@@ -1019,13 +1018,6 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj,
 static struct most_aim_attribute most_aim_attr_add_link =
        __ATTR(add_link, S_IRUGO | S_IWUSR, show_add_link, store_add_link);
 
-static ssize_t show_remove_link(struct most_aim_obj *aim_obj,
-                               struct most_aim_attribute *attr,
-                               char *buf)
-{
-       return snprintf(buf, PAGE_SIZE, "%s\n", aim_obj->remove_link);
-}
-
 /**
  * store_remove_link - store function for remove_link attribute
  * @aim_obj: pointer to AIM object
@@ -1049,7 +1041,6 @@ static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
        size_t max_len = min_t(size_t, len + 1, STRING_SIZE);
 
        strlcpy(buffer, buf, max_len);
-       strlcpy(aim_obj->remove_link, buf, max_len);
        ret = split_string(buffer, &mdev, &mdev_ch, NULL);
        if (ret)
                return ret;
@@ -1068,8 +1059,7 @@ static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
 }
 
 static struct most_aim_attribute most_aim_attr_remove_link =
-       __ATTR(remove_link, S_IRUGO | S_IWUSR, show_remove_link,
-              store_remove_link);
+       __ATTR(remove_link, S_IWUSR, NULL, store_remove_link);
 
 static struct attribute *most_aim_def_attrs[] = {
        &most_aim_attr_add_link.attr,