pxa3xx-gcu: quite playing silly buggers with ->f_op
misc device gets ->private_data pointing to struct miscdevice
on open(), so we can use that to get to per-device structure
instead of relying on file_operations being copied into it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/video/pxa3xx-gcu.c b/drivers/video/pxa3xx-gcu.c
index 6c984ea..4c318a3 100644
--- a/drivers/video/pxa3xx-gcu.c
+++ b/drivers/video/pxa3xx-gcu.c
@@ -369,15 +369,20 @@
/* Misc device layer */
+static inline struct pxa3xx_gcu_priv *file_dev(struct file *file)
+{
+ struct miscdevice *dev = file->private_data;
+ return container_of(dev, struct pxa3xx_gcu_priv, misc_dev);
+}
+
static ssize_t
-pxa3xx_gcu_misc_write(struct file *filp, const char *buff,
+pxa3xx_gcu_misc_write(struct file *file, const char *buff,
size_t count, loff_t *offp)
{
int ret;
unsigned long flags;
struct pxa3xx_gcu_batch *buffer;
- struct pxa3xx_gcu_priv *priv =
- container_of(filp->f_op, struct pxa3xx_gcu_priv, misc_fops);
+ struct pxa3xx_gcu_priv *priv = file_dev(file);
int words = count / 4;
@@ -450,11 +455,10 @@
static long
-pxa3xx_gcu_misc_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+pxa3xx_gcu_misc_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
unsigned long flags;
- struct pxa3xx_gcu_priv *priv =
- container_of(filp->f_op, struct pxa3xx_gcu_priv, misc_fops);
+ struct pxa3xx_gcu_priv *priv = file_dev(file);
switch (cmd) {
case PXA3XX_GCU_IOCTL_RESET:
@@ -471,11 +475,10 @@
}
static int
-pxa3xx_gcu_misc_mmap(struct file *filp, struct vm_area_struct *vma)
+pxa3xx_gcu_misc_mmap(struct file *file, struct vm_area_struct *vma)
{
unsigned int size = vma->vm_end - vma->vm_start;
- struct pxa3xx_gcu_priv *priv =
- container_of(filp->f_op, struct pxa3xx_gcu_priv, misc_fops);
+ struct pxa3xx_gcu_priv *priv = file_dev(file);
switch (vma->vm_pgoff) {
case 0: