/**
* sysfs_remove_dir - remove an object's directory.
* @kobj: object.
*
* The only thing special about this is that we remove any files in
* the directory before we remove the directory, and we've inlined
* what used to be sysfs_rmdir() below, instead of calling separately.
*/
void sysfs_remove_dir(struct kobject *kobj)
{
struct sysfs_dirent *sd = kobj->sd;
/*
* In general, kboject owner is responsible for ensuring removal
* doesn't race with other operations and sysfs doesn't provide any
* protection; however, when @kobj is used as a symlink target, the
* symlinking entity usually doesn't own @kobj and thus has no
* control over removal. @kobj->sd may be removed anytime and
* symlink code may end up dereferencing an already freed sd.
*
* sysfs_symlink_target_lock synchronizes @kobj->sd disassociation
* against symlink operations so that symlink code can safely
* dereference @kobj->sd.
*/
spin_lock(&sysfs_symlink_target_lock);
kobj->sd = NULL;
spin_unlock(&sysfs_symlink_target_lock);
if (sd) {
WARN_ON_ONCE(sysfs_type(sd) != SYSFS_DIR);
sysfs_remove(sd);
}
}
static void dps_connected_sysfs_shutdown(struct dce6 *dce)
{
u8 i;
for (i = 0; i < dce->ddev.crtcs_n; ++i) {
if ((dce->dps_used & BIT(i)) == 0)
continue;
if (!dce->dps[i].connected)
continue;
sysfs_remove(dce, i);
}
}
