tty: goldfish: 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/20231206073712.17776-12-jirislaby@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/goldfish.c

@@ -50,10 +50,8 @@ static u32 goldfish_tty_line_count = 8;
 static u32 goldfish_tty_current_line_count;
 static struct goldfish_tty *goldfish_ttys;
 
-static void do_rw_io(struct goldfish_tty *qtty,
-		     unsigned long address,
-		     unsigned int count,
-		     bool is_write)
+static void do_rw_io(struct goldfish_tty *qtty, unsigned long address,
+		     size_t count, bool is_write)
 {
 	unsigned long irq_flags;
 	void __iomem *base = qtty->base;
@@ -73,10 +71,8 @@ static void do_rw_io(struct goldfish_tty *qtty,
 	spin_unlock_irqrestore(&qtty->lock, irq_flags);
 }
 
-static void goldfish_tty_rw(struct goldfish_tty *qtty,
-			    unsigned long addr,
-			    unsigned int count,
-			    bool is_write)
+static void goldfish_tty_rw(struct goldfish_tty *qtty, unsigned long addr,
+			    size_t count, bool is_write)
 {
 	dma_addr_t dma_handle;
 	enum dma_data_direction dma_dir;
@@ -125,7 +121,7 @@ static void goldfish_tty_rw(struct goldfish_tty *qtty,
 	}
 }
 
-static void goldfish_tty_do_write(int line, const u8 *buf, unsigned int count)
+static void goldfish_tty_do_write(int line, const u8 *buf, size_t count)
 {
 	struct goldfish_tty *qtty = &goldfish_ttys[line];
 
@@ -136,7 +132,7 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id)
 {
 	struct goldfish_tty *qtty = dev_id;
 	void __iomem *base = qtty->base;
-	unsigned char *buf;
+	u8 *buf;
 	u32 count;
 
 	count = gf_ioread32(base + GOLDFISH_TTY_REG_BYTES_READY);