diff options
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/thermal_core.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 996c038f83a4..c8d4010940ef 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -960,10 +960,7 @@ __thermal_cooling_device_register(struct device_node *np, { struct thermal_cooling_device *cdev; struct thermal_zone_device *pos = NULL; - int result; - - if (type && strlen(type) >= THERMAL_NAME_LENGTH) - return ERR_PTR(-EINVAL); + int ret; if (!ops || !ops->get_max_state || !ops->get_cur_state || !ops->set_cur_state) @@ -973,14 +970,17 @@ __thermal_cooling_device_register(struct device_node *np, if (!cdev) return ERR_PTR(-ENOMEM); - result = ida_simple_get(&thermal_cdev_ida, 0, 0, GFP_KERNEL); - if (result < 0) { - kfree(cdev); - return ERR_PTR(result); + ret = ida_simple_get(&thermal_cdev_ida, 0, 0, GFP_KERNEL); + if (ret < 0) + goto out_kfree_cdev; + cdev->id = ret; + + cdev->type = kstrdup(type ? type : "", GFP_KERNEL); + if (!cdev->type) { + ret = -ENOMEM; + goto out_ida_remove; } - cdev->id = result; - strlcpy(cdev->type, type ? : "", sizeof(cdev->type)); mutex_init(&cdev->lock); INIT_LIST_HEAD(&cdev->thermal_instances); cdev->np = np; @@ -990,12 +990,9 @@ __thermal_cooling_device_register(struct device_node *np, cdev->devdata = devdata; thermal_cooling_device_setup_sysfs(cdev); dev_set_name(&cdev->device, "cooling_device%d", cdev->id); - result = device_register(&cdev->device); - if (result) { - ida_simple_remove(&thermal_cdev_ida, cdev->id); - put_device(&cdev->device); - return ERR_PTR(result); - } + ret = device_register(&cdev->device); + if (ret) + goto out_kfree_type; /* Add 'this' new cdev to the global cdev list */ mutex_lock(&thermal_list_lock); @@ -1013,6 +1010,14 @@ __thermal_cooling_device_register(struct device_node *np, mutex_unlock(&thermal_list_lock); return cdev; + +out_kfree_type: + kfree(cdev->type); + put_device(&cdev->device); +out_ida_remove: + ida_simple_remove(&thermal_cdev_ida, cdev->id); +out_kfree_cdev: + return ERR_PTR(ret); } /** @@ -1171,6 +1176,7 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev) ida_simple_remove(&thermal_cdev_ida, cdev->id); device_del(&cdev->device); thermal_cooling_device_destroy_sysfs(cdev); + kfree(cdev->type); put_device(&cdev->device); } EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister); |