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authorJoel Becker <joel.becker@oracle.com>2008-06-12 14:00:18 -0700
committerMark Fasheh <mfasheh@suse.com>2008-07-14 13:57:16 -0700
commit11c3b79218390a139f2d474ee1e983a672d5839a (patch)
tree03fa1a4927f2d9856ee45a64d522424478058b6f /drivers/net/netconsole.c
parent6d8344baee99402de58b5fa5dfea197242955c15 (diff)
downloadop-kernel-dev-11c3b79218390a139f2d474ee1e983a672d5839a.zip
op-kernel-dev-11c3b79218390a139f2d474ee1e983a672d5839a.tar.gz
configfs: Allow ->make_item() and ->make_group() to return detailed errors.
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>
Diffstat (limited to 'drivers/net/netconsole.c')
-rw-r--r--drivers/net/netconsole.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 665341e..387a133 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -585,8 +585,9 @@ static struct config_item_type netconsole_target_type = {
* Group operations and type for netconsole_subsys.
*/
-static struct config_item *make_netconsole_target(struct config_group *group,
- const char *name)
+static int make_netconsole_target(struct config_group *group,
+ const char *name,
+ struct config_item **new_item)
{
unsigned long flags;
struct netconsole_target *nt;
@@ -598,7 +599,7 @@ static struct config_item *make_netconsole_target(struct config_group *group,
nt = kzalloc(sizeof(*nt), GFP_KERNEL);
if (!nt) {
printk(KERN_ERR "netconsole: failed to allocate memory\n");
- return NULL;
+ return -ENOMEM;
}
nt->np.name = "netconsole";
@@ -615,7 +616,8 @@ static struct config_item *make_netconsole_target(struct config_group *group,
list_add(&nt->list, &target_list);
spin_unlock_irqrestore(&target_list_lock, flags);
- return &nt->item;
+ *new_item = &nt->item;
+ return 0;
}
static void drop_netconsole_target(struct config_group *group,
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