tty: ttyprintk: 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)" <[e-mail]>
Cc: Arnd Bergmann <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/char/ttyprintk.c

···
 
 static int tpk_curr;
 
-static char tpk_buffer[TPK_STR_SIZE + 4];
+static u8 tpk_buffer[TPK_STR_SIZE + 4];
 
 static void tpk_flush(void)
 {
···
 	}
 }
 
-static int tpk_printk(const u8 *buf, int count)
+static int tpk_printk(const u8 *buf, size_t count)
 {
-	int i;
+	size_t i;
 
 	for (i = 0; i < count; i++) {
 		if (tpk_curr >= TPK_STR_SIZE) {