tty: serial: samsung: make max_count unsigned int

``max_count`` negative values are not used. Since ``port->fifosize``
is an unsigned int, make ``max_count`` the same.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240119104526.1221243-13-tudor.ambarus@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
index 4bb75b1eceef300dd3dc657293e8d952abc4def9..f8a8b459a86b6dddfe88d9284e2e11445b615e55 100644 (file)
--- a/drivers/tty/serial/samsung_tty.c
+++ b/drivers/tty/serial/samsung_tty.c
@@ -760,8 +760,8 @@ finish:
 static void s3c24xx_serial_rx_drain_fifo(struct s3c24xx_uart_port *ourport)
 {
        struct uart_port *port = &ourport->port;
+       unsigned int max_count = port->fifosize;
        unsigned int fifocnt = 0;
-       int max_count = port->fifosize;
        u32 ufcon, ufstat, uerstat;
        u8 ch, flag;