1 files changed, 16 insertions, 9 deletions

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 65c3073a1dcb..52779549d367 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -217,19 +217,25 @@ static const struct file_operations acpi_video_bus_POST_info_fops = {
 };
 
 static int acpi_video_bus_POST_open_fs(struct inode *inode, struct file *file);
-static struct file_operations acpi_video_bus_POST_fops = {
+static int acpi_video_bus_write_POST(struct file *file,
+        const char __user *buffer, size_t count, loff_t *data);
+static const struct file_operations acpi_video_bus_POST_fops = {
         .owner = THIS_MODULE,
         .open = acpi_video_bus_POST_open_fs,
         .read = seq_read,
+        .write = acpi_video_bus_write_POST,
         .llseek = seq_lseek,
         .release = single_release,
 };
 
 static int acpi_video_bus_DOS_open_fs(struct inode *inode, struct file *file);
-static struct file_operations acpi_video_bus_DOS_fops = {
+static int acpi_video_bus_write_DOS(struct file *file,
+        const char __user *buffer, size_t count, loff_t *data);
+static const struct file_operations acpi_video_bus_DOS_fops = {
         .owner = THIS_MODULE,
         .open = acpi_video_bus_DOS_open_fs,
         .read = seq_read,
+        .write = acpi_video_bus_write_DOS,
         .llseek = seq_lseek,
         .release = single_release,
 };
@@ -247,20 +253,26 @@ static const struct file_operations acpi_video_device_info_fops = {
 
 static int acpi_video_device_state_open_fs(struct inode *inode,
                                            struct file *file);
-static struct file_operations acpi_video_device_state_fops = {
+static int acpi_video_device_write_state(struct file *file,
+        const char __user *buffer, size_t count, loff_t *data);
+static const struct file_operations acpi_video_device_state_fops = {
         .owner = THIS_MODULE,
         .open = acpi_video_device_state_open_fs,
         .read = seq_read,
+        .write = acpi_video_device_write_state,
         .llseek = seq_lseek,
         .release = single_release,
 };
 
 static int acpi_video_device_brightness_open_fs(struct inode *inode,
                                                 struct file *file);
+static int acpi_video_device_write_brightness(struct file *file,
+        const char __user *buffer, size_t count, loff_t *data);
 static struct file_operations acpi_video_device_brightness_fops = {
         .owner = THIS_MODULE,
         .open = acpi_video_device_brightness_open_fs,
         .read = seq_read,
+        .write = acpi_video_device_write_brightness,
         .llseek = seq_lseek,
         .release = single_release,
 };
@@ -275,7 +287,7 @@ static const struct file_operations acpi_video_device_EDID_fops = {
         .release = single_release,
 };
 
-static char device_decode[][30] = {
+static const char device_decode[][30] = {
         "motherboard VGA device",
         "PCI VGA device",
         "AGP VGA device",
@@ -1134,7 +1146,6 @@ static int acpi_video_device_add_fs(struct acpi_device *device)
                 goto err_remove_dir;
 
         /* 'state' [R/W] */
-        acpi_video_device_state_fops.write = acpi_video_device_write_state;
         entry = proc_create_data("state", S_IFREG | S_IRUGO | S_IWUSR,
                                  device_dir,
                                  &acpi_video_device_state_fops,
@@ -1143,8 +1154,6 @@ static int acpi_video_device_add_fs(struct acpi_device *device)
                 goto err_remove_info;
 
         /* 'brightness' [R/W] */
-        acpi_video_device_brightness_fops.write =
-                acpi_video_device_write_brightness;
         entry = proc_create_data("brightness", S_IFREG | S_IRUGO | S_IWUSR,
                                  device_dir,
                                  &acpi_video_device_brightness_fops,
@@ -1427,7 +1436,6 @@ static int acpi_video_bus_add_fs(struct acpi_device *device)
                 goto err_remove_rom;
 
         /* 'POST' [R/W] */
-        acpi_video_bus_POST_fops.write = acpi_video_bus_write_POST;
         entry = proc_create_data("POST", S_IFREG | S_IRUGO | S_IWUSR,
                                  device_dir,
                                  &acpi_video_bus_POST_fops,
@@ -1436,7 +1444,6 @@ static int acpi_video_bus_add_fs(struct acpi_device *device)
                 goto err_remove_post_info;
 
         /* 'DOS' [R/W] */
-        acpi_video_bus_DOS_fops.write = acpi_video_bus_write_DOS;
         entry = proc_create_data("DOS", S_IFREG | S_IRUGO | S_IWUSR,
                                  device_dir,
                                  &acpi_video_bus_DOS_fops,