Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4500ca8e221e72cc38e7c239b9b1a041031ee450
Commit: 4500ca8e221e72cc38e7c239b9b1a041031ee450
Parent: 40ffbfad6bb79a99cc7627bdaca0ee22dec526f6
Author: Alexey Starikovskiy <[EMAIL PROTECTED]>
AuthorDate: Mon Sep 3 16:29:58 2007 +0400
Committer: Len Brown <[EMAIL PROTECTED]>
CommitDate: Wed Sep 5 14:24:28 2007 -0400
ACPI: video: Don't call absent methods
Signed-off-by: Ryan May <[EMAIL PROTECTED]>
Signed-off-by: Alexey Starikovskiy <[EMAIL PROTECTED]>
Signed-off-by: Len Brown <[EMAIL PROTECTED]>
---
drivers/acpi/video.c | 18 ++++++++++--------
1 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3c9bb85..83aa41c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -409,14 +409,16 @@ acpi_video_device_lcd_query_levels(struct
acpi_video_device *device,
static int
acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
{
- int status;
+ int status = AE_OK;
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list args = { 1, &arg0 };
arg0.integer.value = level;
- status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL);
-
+ if (device->cap._BCM)
+ status = acpi_evaluate_object(device->dev->handle, "_BCM",
+ &args, NULL);
+ device->brightness->curr = level;
printk(KERN_DEBUG "set_level status: %x\n", status);
return status;
}
@@ -425,11 +427,11 @@ static int
acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
unsigned long *level)
{
- int status;
-
- status = acpi_evaluate_integer(device->dev->handle, "_BQC", NULL,
level);
-
- return status;
+ if (device->cap._BQC)
+ return acpi_evaluate_integer(device->dev->handle, "_BQC", NULL,
+ level);
+ *level = device->brightness->curr;
+ return AE_OK;
}
static int
-
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