staging:ced1401: remove read write callbacks from fops
As the driver says that read and writes should not be performed
and instead the user to kernel transactions are performed through
ioctl interface, remove these functions as they are not required
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/ced1401/usb1401.c b/drivers/staging/ced1401/usb1401.c
index 59d69b4..6ba0ef6 100644
--- a/drivers/staging/ced1401/usb1401.c
+++ b/drivers/staging/ced1401/usb1401.c
@@ -261,24 +261,6 @@
return res;
}
-static ssize_t ced_read(struct file *file, char *buffer, size_t count,
- loff_t * ppos)
-{
- DEVICE_EXTENSION *pdx = file->private_data;
- dev_err(&pdx->interface->dev, "%s called: use ioctl for cedusb",
- __func__);
- return 0; // as we do not do reads this way
-}
-
-static ssize_t ced_write(struct file *file, const char *user_buffer,
- size_t count, loff_t * ppos)
-{
- DEVICE_EXTENSION *pdx = file->private_data;
- dev_err(&pdx->interface->dev, "%s called: use ioctl for cedusb",
- __func__);
- return 0;
-}
-
/***************************************************************************
** CanAcceptIoRequests
** If the device is removed, interface is set NULL. We also clear our pointer
@@ -1402,8 +1384,6 @@
static const struct file_operations ced_fops = {
.owner = THIS_MODULE,
- .read = ced_read,
- .write = ced_write,
.open = ced_open,
.release = ced_release,
.flush = ced_flush,