tty: gdm724x: convert counts to size_t

Unify the type of tty_operations::write() counters with the 'count'
parameter. I.e. use size_t for them.

This includes changing constants to UL to keep min() and avoid min_t().

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: linux-staging@lists.linux.dev
Link: https://lore.kernel.org/r/20230810091510.13006-35-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
index b31f2af..cbaaa8f 100644 (file)
--- a/drivers/staging/gdm724x/gdm_tty.c
+++ b/drivers/staging/gdm724x/gdm_tty.c
@@ -17,9 +17,9 @@
 #define GDM_TTY_MAJOR 0
 #define GDM_TTY_MINOR 32
 
-#define WRITE_SIZE 2048
+#define WRITE_SIZE 2048UL
 
-#define MUX_TX_MAX_SIZE 2048
+#define MUX_TX_MAX_SIZE 2048UL
 
 static inline bool gdm_tty_ready(struct gdm *gdm)
 {
@@ -152,9 +152,8 @@ static void gdm_tty_send_complete(void *arg)
 static ssize_t gdm_tty_write(struct tty_struct *tty, const u8 *buf, size_t len)
 {
        struct gdm *gdm = tty->driver_data;
-       int remain = len;
-       int sent_len = 0;
-       int sending_len = 0;
+       size_t remain = len;
+       size_t sent_len = 0;
 
        if (!gdm_tty_ready(gdm))
                return -ENODEV;
@@ -163,7 +162,7 @@ static ssize_t gdm_tty_write(struct tty_struct *tty, const u8 *buf, size_t len)
                return 0;
 
        while (1) {
-               sending_len = min(MUX_TX_MAX_SIZE, remain);
+               size_t sending_len = min(MUX_TX_MAX_SIZE, remain);
                gdm->tty_dev->send_func(gdm->tty_dev->priv_dev,
                                        (void *)(buf + sent_len),
                                        sending_len,