diff options
| author | David Vrabel <david.vrabel@csr.com> | 2008-09-17 16:34:40 +0100 |
|---|---|---|
| committer | David Vrabel <dv02@dv02pc01.europe.root.pri> | 2008-09-17 16:54:35 +0100 |
| commit | b60066c141997ac2e4ef08459b75638ae86ae781 (patch) | |
| tree | e7c89b8652a0f0416d0da338c31337991bf57c93 /drivers/uwb | |
| parent | b63795fa3a41151040b86119750a7df508d40cda (diff) | |
| download | lwn-b60066c141997ac2e4ef08459b75638ae86ae781.tar.gz lwn-b60066c141997ac2e4ef08459b75638ae86ae781.zip | |
uwb: add symlinks in sysfs between radio controllers and PALs
Add a facility for PALs to have symlinks to their radio controller
(and vice-versa) and make WUSB host controllers use this.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Diffstat (limited to 'drivers/uwb')
| -rw-r--r-- | drivers/uwb/pal.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/uwb/pal.c b/drivers/uwb/pal.c index 5508993a820e..1afb38eacb9a 100644 --- a/drivers/uwb/pal.c +++ b/drivers/uwb/pal.c @@ -39,6 +39,21 @@ EXPORT_SYMBOL_GPL(uwb_pal_init); */ int uwb_pal_register(struct uwb_rc *rc, struct uwb_pal *pal) { + int ret; + + if (pal->device) { + ret = sysfs_create_link(&pal->device->kobj, + &rc->uwb_dev.dev.kobj, "uwb_rc"); + if (ret < 0) + return ret; + ret = sysfs_create_link(&rc->uwb_dev.dev.kobj, + &pal->device->kobj, pal->name); + if (ret < 0) { + sysfs_remove_link(&pal->device->kobj, "uwb_rc"); + return ret; + } + } + spin_lock(&rc->pal_lock); list_add(&pal->node, &rc->pals); spin_unlock(&rc->pal_lock); @@ -57,6 +72,11 @@ void uwb_pal_unregister(struct uwb_rc *rc, struct uwb_pal *pal) spin_lock(&rc->pal_lock); list_del(&pal->node); spin_unlock(&rc->pal_lock); + + if (pal->device) { + sysfs_remove_link(&rc->uwb_dev.dev.kobj, pal->name); + sysfs_remove_link(&pal->device->kobj, "uwb_rc"); + } } EXPORT_SYMBOL_GPL(uwb_pal_unregister); |