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-rw-r--r--drivers/tty/serdev/serdev-ttyport.c2
-rw-r--r--include/linux/serdev.h8
2 files changed, 5 insertions, 5 deletions
diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c
index c5381fe15e1c..e94e090cf0a1 100644
--- a/drivers/tty/serdev/serdev-ttyport.c
+++ b/drivers/tty/serdev/serdev-ttyport.c
@@ -74,7 +74,7 @@ static const struct tty_port_client_operations client_ops = {
* Callback functions from the serdev core.
*/
-static int ttyport_write_buf(struct serdev_controller *ctrl, const unsigned char *data, size_t len)
+static ssize_t ttyport_write_buf(struct serdev_controller *ctrl, const u8 *data, size_t len)
{
struct serport *serport = serdev_controller_get_drvdata(ctrl);
struct tty_struct *tty = serport->tty;
diff --git a/include/linux/serdev.h b/include/linux/serdev.h
index 0ebf53bb254f..8cdab2c3b6d5 100644
--- a/include/linux/serdev.h
+++ b/include/linux/serdev.h
@@ -82,7 +82,7 @@ enum serdev_parity {
* serdev controller structures
*/
struct serdev_controller_ops {
- int (*write_buf)(struct serdev_controller *, const unsigned char *, size_t);
+ ssize_t (*write_buf)(struct serdev_controller *, const u8 *, size_t);
void (*write_flush)(struct serdev_controller *);
int (*write_room)(struct serdev_controller *);
int (*open)(struct serdev_controller *);
@@ -185,9 +185,9 @@ static inline void serdev_controller_write_wakeup(struct serdev_controller *ctrl
serdev->ops->write_wakeup(serdev);
}
-static inline int serdev_controller_receive_buf(struct serdev_controller *ctrl,
- const unsigned char *data,
- size_t count)
+static inline ssize_t serdev_controller_receive_buf(struct serdev_controller *ctrl,
+ const u8 *data,
+ size_t count)
{
struct serdev_device *serdev = ctrl->serdev;