[PATCH 34/36] tty: gdm724x: convert counts to size_t

From: Jiri Slaby (SUSE)
Date: Thu Aug 10 2023 - 05:19:06 EST


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@xxxxxxxxxx>
Cc: linux-staging@xxxxxxxxxxxxxxx
---
drivers/staging/gdm724x/gdm_tty.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
index b31f2afb0286..cbaaa8fa7474 100644
--- 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,
--
2.41.0