tty: moxa: convert to u8 and size_t

Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231206073712.17776-18-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index bf3f87ba3a92ce6fe5f238a3cb5920647ee882cb..ebaada8db92944c0fc8f44259cd3e2048a0b14cc 100644 (file)
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -514,7 +514,7 @@ static void MoxaPortLineCtrl(struct moxa_port *, bool, bool);
 static void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int);
 static int MoxaPortLineStatus(struct moxa_port *);
 static void MoxaPortFlushData(struct moxa_port *, int);
-static int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int);
+static ssize_t MoxaPortWriteData(struct tty_struct *, const u8 *, size_t);
 static int MoxaPortReadData(struct moxa_port *);
 static unsigned int MoxaPortTxQueue(struct moxa_port *);
 static int MoxaPortRxQueue(struct moxa_port *);
@@ -1933,10 +1933,10 @@ static void MoxaPortFlushData(struct moxa_port *port, int mode)
  *
  *      Function 20:    Write data.
  *      Syntax:
- *      int  MoxaPortWriteData(int port, unsigned char * buffer, int length);
+ *      ssize_t  MoxaPortWriteData(int port, u8 *buffer, size_t length);
  *           int port           : port number (0 - 127)
- *           unsigned char * buffer     : pointer to write data buffer.
- *           int length         : write data length
+ *           u8 *buffer         : pointer to write data buffer.
+ *           size_t length      : write data length
  *
  *           return:    0 - length      : real write data length
  *
@@ -2163,11 +2163,12 @@ static int MoxaPortLineStatus(struct moxa_port *port)
        return val;
 }
 
-static int MoxaPortWriteData(struct tty_struct *tty, const u8 *buffer, int len)
+static ssize_t MoxaPortWriteData(struct tty_struct *tty, const u8 *buffer,
+                                size_t len)
 {
        struct moxa_port *port = tty->driver_data;
        void __iomem *baseAddr, *ofsAddr, *ofs;
-       unsigned int c, total;
+       size_t c, total;
        u16 head, tail, tx_mask, spage, epage;
        u16 pageno, pageofs, bufhead;
 
@@ -2224,8 +2225,8 @@ static int MoxaPortWriteData(struct tty_struct *tty, const u8 *buffer, int len)
 static int MoxaPortReadData(struct moxa_port *port)
 {
        struct tty_struct *tty = port->port.tty;
-       unsigned char *dst;
        void __iomem *baseAddr, *ofsAddr, *ofs;
+       u8 *dst;
        unsigned int count, len, total;
        u16 tail, rx_mask, spage, epage;
        u16 pageno, pageofs, bufhead, head;