lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

configfs: Allow ->make_item() and ->make_group() to return detailed errors.

Browse Source 
The configfs operations ->make_item() and ->make_group() currently
return a new item/group.  A return of NULL signifies an error.  Because
of this, -ENOMEM is the only return code bubbled up the stack.

Multiple folks have requested the ability to return specific error codes
when these operations fail.  This patch adds that ability by changing the
->make_item/group() ops to return an int.

Also updated are the in-kernel users of configfs.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Joel Becker
2008-06-12 14:00:18 -07:00
committed by Mark Fasheh
parent 6d8344baee
commit 11c3b79218
8 changed files with 94 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
fs/ocfs2/cluster/heartbeat.c
View File

@ -1489,25 +1489,28 @@ static struct o2hb_heartbeat_group *to_o2hb_heartbeat_group(struct config_group
: NULL;
}
static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *group,
const char *name)
static int o2hb_heartbeat_group_make_item(struct config_group *group,
const char *name,
struct config_item **new_item)
{
struct o2hb_region *reg = NULL;
struct config_item *ret = NULL;
int ret = 0;
reg = kzalloc(sizeof(struct o2hb_region), GFP_KERNEL);
if (reg == NULL)
goto out; /* ENOMEM */
if (reg == NULL) {
ret = -ENOMEM;
goto out;
}
config_item_init_type_name(&reg->hr_item, name, &o2hb_region_type);
ret = &reg->hr_item;
*new_item = &reg->hr_item;
spin_lock(&o2hb_live_lock);
list_add_tail(&reg->hr_all_item, &o2hb_all_regions);
spin_unlock(&o2hb_live_lock);
out:
if (ret == NULL)
if (ret)
kfree(reg);
return ret;