diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-28 19:41:05 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-28 19:41:05 -1000 |
| commit | adda766193ea1cf3137484a9521972d080d0b7af (patch) | |
| tree | fa7552d8051397ac7e1497f7239e3a7afb0ed89b | |
| parent | 8442edc18843491978f7820f87dbdf293461290e (diff) | |
| parent | e29b3ee3b005897fbdcfdd4b3190776e38739d70 (diff) | |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: don't free non-existent backlight in acpi video module
toshiba_acpi: return on a fail path
ACPICA: Windows compatibility fix: same buffer/string store
| -rw-r--r-- | drivers/acpi/acpica/exstorob.c | 12 | ||||
| -rw-r--r-- | drivers/acpi/video.c | 7 | ||||
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 1 |
3 files changed, 18 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c index 67340cc7014..257706e7734 100644 --- a/drivers/acpi/acpica/exstorob.c +++ b/drivers/acpi/acpica/exstorob.c @@ -70,6 +70,12 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a buffer by now */ buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); @@ -161,6 +167,12 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a string by now */ buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer); diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 8851315ce85..60ea984c84a 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -2004,8 +2004,11 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device) status = acpi_remove_notify_handler(device->dev->handle, ACPI_DEVICE_NOTIFY, acpi_video_device_notify); - sysfs_remove_link(&device->backlight->dev.kobj, "device"); - backlight_device_unregister(device->backlight); + if (device->backlight) { + sysfs_remove_link(&device->backlight->dev.kobj, "device"); + backlight_device_unregister(device->backlight); + device->backlight = NULL; + } if (device->cdev) { sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling"); diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 81d31ea507d..51c0a8bee41 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -335,6 +335,7 @@ static void bt_rfkill_poll(struct rfkill *rfkill, void *data) if (hci_result != HCI_SUCCESS) { /* Can't do anything useful */ mutex_unlock(&dev->mutex); + return; } new_rfk_state = value; |