diff options
| -rw-r--r-- | drivers/acpi/fan.c | 34 | ||||
| -rw-r--r-- | drivers/acpi/processor_core.c | 30 | ||||
| -rw-r--r-- | drivers/acpi/video.c | 28 |
3 files changed, 49 insertions, 43 deletions
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 4d535c50d82..c8e3cba423e 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -260,22 +260,24 @@ static int acpi_fan_add(struct acpi_device *device) result = PTR_ERR(cdev); goto end; } - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev.bus_id, cdev->id); - - acpi_driver_data(device) = cdev; - result = sysfs_create_link(&device->dev.kobj, - &cdev->device.kobj, - "thermal_cooling"); - if (result) - return result; - - result = sysfs_create_link(&cdev->device.kobj, - &device->dev.kobj, - "device"); - if (result) - return result; + if (cdev) { + printk(KERN_INFO PREFIX + "%s is registered as cooling_device%d\n", + device->dev.bus_id, cdev->id); + + acpi_driver_data(device) = cdev; + result = sysfs_create_link(&device->dev.kobj, + &cdev->device.kobj, + "thermal_cooling"); + if (result) + return result; + + result = sysfs_create_link(&cdev->device.kobj, + &device->dev.kobj, + "device"); + if (result) + return result; + } result = acpi_fan_add_fs(device); if (result) diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 3a136f6c66a..36a68fa114e 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -674,20 +674,22 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device) result = PTR_ERR(pr->cdev); goto end; } - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev.bus_id, pr->cdev->id); - - result = sysfs_create_link(&device->dev.kobj, - &pr->cdev->device.kobj, - "thermal_cooling"); - if (result) - return result; - result = sysfs_create_link(&pr->cdev->device.kobj, - &device->dev.kobj, - "device"); - if (result) - return result; + if (pr->cdev) { + printk(KERN_INFO PREFIX + "%s is registered as cooling_device%d\n", + device->dev.bus_id, pr->cdev->id); + + result = sysfs_create_link(&device->dev.kobj, + &pr->cdev->device.kobj, + "thermal_cooling"); + if (result) + return result; + result = sysfs_create_link(&pr->cdev->device.kobj, + &device->dev.kobj, + "device"); + if (result) + return result; + } if (pr->flags.throttling) { printk(KERN_INFO PREFIX "%s [%s] (supports", diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index fe09b57de61..12fb44f1676 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -734,19 +734,21 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (IS_ERR(device->cdev)) return; - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev->dev.bus_id, device->cdev->id); - result = sysfs_create_link(&device->dev->dev.kobj, - &device->cdev->device.kobj, - "thermal_cooling"); - if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); - result = sysfs_create_link(&device->cdev->device.kobj, - &device->dev->dev.kobj, - "device"); - if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); + if (device->cdev) { + printk(KERN_INFO PREFIX + "%s is registered as cooling_device%d\n", + device->dev->dev.bus_id, device->cdev->id); + result = sysfs_create_link(&device->dev->dev.kobj, + &device->cdev->device.kobj, + "thermal_cooling"); + if (result) + printk(KERN_ERR PREFIX "Create sysfs link\n"); + result = sysfs_create_link(&device->cdev->device.kobj, + &device->dev->dev.kobj, + "device"); + if (result) + printk(KERN_ERR PREFIX "Create sysfs link\n"); + } } if (device->cap._DCS && device->cap._DSS){ static int count = 0; |