diff options
Diffstat (limited to 'drivers/staging/gdm724x/gdm_tty.c')
| -rw-r--r-- | drivers/staging/gdm724x/gdm_tty.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c index e1a84d6020f4..32b2e817ff04 100644 --- a/drivers/staging/gdm724x/gdm_tty.c +++ b/drivers/staging/gdm724x/gdm_tty.c @@ -149,22 +149,17 @@ static void gdm_tty_send_complete(void *arg) tty_port_tty_wakeup(&gdm->port); } -static int gdm_tty_write(struct tty_struct *tty, const unsigned char *buf, - int len) +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; - if (!len) - return 0; - - while (1) { - sending_len = min(MUX_TX_MAX_SIZE, remain); + while (remain) { + size_t sending_len = min_t(size_t, MUX_TX_MAX_SIZE, remain); gdm->tty_dev->send_func(gdm->tty_dev->priv_dev, (void *)(buf + sent_len), sending_len, @@ -173,8 +168,6 @@ static int gdm_tty_write(struct tty_struct *tty, const unsigned char *buf, gdm); sent_len += sending_len; remain -= sending_len; - if (remain <= 0) - break; } return len; |