Pull bugzilla-5653 into release branch

[linux-2.6] / drivers / acpi / video.c

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index f051b151580d7de14647213f6c4497a75a4eff57..724149d72d91adcd2d88293d2f5854b76f259791 100644 (file)
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -323,7 +323,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
        if (!ACPI_SUCCESS(status))
                return_VALUE(status);
        obj = (union acpi_object *)buffer.pointer;
-       if (!obj && (obj->type != ACPI_TYPE_PACKAGE)) {
+       if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _BCL data\n"));
                status = -EFAULT;
                goto err;
@@ -812,7 +812,7 @@ acpi_video_device_write_brightness(struct file *file,
 
        ACPI_FUNCTION_TRACE("acpi_video_device_write_brightness");
 
-       if (!dev || count + 1 > sizeof str)
+       if (!dev || !dev->brightness || count + 1 > sizeof str)
                return_VALUE(-EINVAL);
 
        if (copy_from_user(str, buffer, count))
@@ -920,8 +920,8 @@ static int acpi_video_device_add_fs(struct acpi_device *device)
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                  "Unable to create 'state' fs entry\n"));
        else {
+               acpi_video_device_state_fops.write = acpi_video_device_write_state;
                entry->proc_fops = &acpi_video_device_state_fops;
-               entry->proc_fops->write = acpi_video_device_write_state;
                entry->data = acpi_driver_data(device);
                entry->owner = THIS_MODULE;
        }
@@ -934,8 +934,8 @@ static int acpi_video_device_add_fs(struct acpi_device *device)
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                  "Unable to create 'brightness' fs entry\n"));
        else {
+               acpi_video_device_brightness_fops.write = acpi_video_device_write_brightness;
                entry->proc_fops = &acpi_video_device_brightness_fops;
-               entry->proc_fops->write = acpi_video_device_write_brightness;
                entry->data = acpi_driver_data(device);
                entry->owner = THIS_MODULE;
        }
@@ -1239,8 +1239,8 @@ static int acpi_video_bus_add_fs(struct acpi_device *device)
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                  "Unable to create 'POST' fs entry\n"));
        else {
+               acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST;
                entry->proc_fops = &acpi_video_bus_POST_fops;
-               entry->proc_fops->write = acpi_video_bus_write_POST;
                entry->data = acpi_driver_data(device);
                entry->owner = THIS_MODULE;
        }
@@ -1253,8 +1253,8 @@ static int acpi_video_bus_add_fs(struct acpi_device *device)
                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                  "Unable to create 'DOS' fs entry\n"));
        else {
+               acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS;
                entry->proc_fops = &acpi_video_bus_DOS_fops;
-               entry->proc_fops->write = acpi_video_bus_write_DOS;
                entry->data = acpi_driver_data(device);
                entry->owner = THIS_MODULE;
        }