while (1) {
if (tty->stopped || tty->hw_stopped)
break;
- c = min(info->xmit_fifo_room, min(info->xmit_cnt, XMIT_BUF_SIZE - info->xmit_tail));
+ c = min(info->xmit_fifo_room, info->xmit_cnt);
+ c = min(c, XMIT_BUF_SIZE - info->xmit_tail);
if (c <= 0 || info->xmit_fifo_room <= 0)
break;
sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) (info->xmit_buf + info->xmit_tail), c / 2);
jiffies);
printk(KERN_INFO "cps=%d...\n", info->cps);
#endif
+ lock_kernel();
while (1) {
txcnt = sGetTxCnt(cp);
if (!txcnt) {
break;
}
__set_current_state(TASK_RUNNING);
+ unlock_kernel();
#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
printk(KERN_INFO "txcnt = %d (jiff=%lu)...done\n", txcnt, jiffies);
#endif
* writing routines will write directly to transmit FIFO.
* Write buffer and counters protected by spinlocks
*/
-static void rp_put_char(struct tty_struct *tty, unsigned char ch)
+static int rp_put_char(struct tty_struct *tty, unsigned char ch)
{
struct r_port *info = (struct r_port *) tty->driver_data;
CHANNEL_t *cp;
unsigned long flags;
if (rocket_paranoia_check(info, "rp_put_char"))
- return;
+ return 0;
/*
* Grab the port write mutex, locking out other processes that try to
}
spin_unlock_irqrestore(&info->slock, flags);
mutex_unlock(&info->write_mtx);
+ return 1;
}
/*
/* Write remaining data into the port's xmit_buf */
while (1) {
- if (!info->tty) /* Seemingly obligatory check... */
+ if (!info->tty) /* Seemingly obligatory check... */
goto end;
-
- c = min(count, min(XMIT_BUF_SIZE - info->xmit_cnt - 1, XMIT_BUF_SIZE - info->xmit_head));
+ c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1);
+ c = min(c, XMIT_BUF_SIZE - info->xmit_head);
if (c <= 0)
break;