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-rw-r--r--drivers/serial/serial_core.c55
1 files changed, 28 insertions, 27 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 276da148c57..efef494d945 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -58,7 +58,8 @@ static struct lock_class_key port_lock_key;
#define uart_console(port) (0)
#endif
-static void uart_change_speed(struct uart_state *state, struct ktermios *old_termios);
+static void uart_change_speed(struct uart_state *state,
+ struct ktermios *old_termios);
static void uart_wait_until_sent(struct tty_struct *tty, int timeout);
static void uart_change_pm(struct uart_state *state, int pm_state);
@@ -129,8 +130,8 @@ uart_update_mctrl(struct uart_port *port, unsigned int set, unsigned int clear)
spin_unlock_irqrestore(&port->lock, flags);
}
-#define uart_set_mctrl(port,set) uart_update_mctrl(port,set,0)
-#define uart_clear_mctrl(port,clear) uart_update_mctrl(port,0,clear)
+#define uart_set_mctrl(port, set) uart_update_mctrl(port, set, 0)
+#define uart_clear_mctrl(port, clear) uart_update_mctrl(port, 0, clear)
/*
* Startup the port. This will be called once per open. All calls
@@ -290,7 +291,7 @@ uart_update_timeout(struct uart_port *port, unsigned int cflag,
break;
default:
bits = 10;
- break; // CS8
+ break; /* CS8 */
}
if (cflag & CSTOPB)
@@ -622,7 +623,7 @@ static int uart_get_info(struct uart_state *state,
tmp.close_delay = state->close_delay / 10;
tmp.closing_wait = state->closing_wait == USF_CLOSING_WAIT_NONE ?
ASYNC_CLOSING_WAIT_NONE :
- state->closing_wait / 10;
+ state->closing_wait / 10;
tmp.custom_divisor = port->custom_divisor;
tmp.hub6 = port->hub6;
tmp.io_type = port->iotype;
@@ -788,7 +789,8 @@ static int uart_set_info(struct uart_state *state,
* We failed anyway.
*/
retval = -EBUSY;
- goto exit; // Added to return the correct error -Ram Gupta
+ /* Added to return the correct error -Ram Gupta */
+ goto exit;
}
}
@@ -858,7 +860,7 @@ static int uart_get_lsr_info(struct uart_state *state,
((uart_circ_chars_pending(&state->info->xmit) > 0) &&
!state->info->tty->stopped && !state->info->tty->hw_stopped))
result &= ~TIOCSER_TEMT;
-
+
return put_user(result, value);
}
@@ -996,8 +998,8 @@ uart_wait_modem_status(struct uart_state *state, unsigned long arg)
((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
- ret = 0;
- break;
+ ret = 0;
+ break;
}
schedule();
@@ -1137,7 +1139,8 @@ uart_ioctl(struct tty_struct *tty, struct file *filp, unsigned int cmd,
return ret;
}
-static void uart_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
+static void uart_set_termios(struct tty_struct *tty,
+ struct ktermios *old_termios)
{
struct uart_state *state = tty->driver_data;
unsigned long flags;
@@ -1213,7 +1216,7 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
{
struct uart_state *state = tty->driver_data;
struct uart_port *port;
-
+
BUG_ON(!kernel_locked());
if (!state || !state->port)
@@ -1278,8 +1281,8 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
uart_shutdown(state);
uart_flush_buffer(tty);
- tty_ldisc_flush(tty);
-
+ tty_ldisc_flush(tty);
+
tty->closing = 0;
state->info->tty = NULL;
@@ -1341,7 +1344,7 @@ static void uart_wait_until_sent(struct tty_struct *tty, int timeout)
expire = jiffies + timeout;
pr_debug("uart_wait_until_sent(%d), jiffies=%lu, expire=%lu...\n",
- port->line, jiffies, expire);
+ port->line, jiffies, expire);
/*
* Check whether the transmitter is empty every 'char_time'.
@@ -1460,10 +1463,9 @@ uart_block_til_ready(struct file *filp, struct uart_state *state)
* have set TTY_IO_ERROR for a non-existant port.
*/
if ((filp->f_flags & O_NONBLOCK) ||
- (info->tty->termios->c_cflag & CLOCAL) ||
- (info->tty->flags & (1 << TTY_IO_ERROR))) {
+ (info->tty->termios->c_cflag & CLOCAL) ||
+ (info->tty->flags & (1 << TTY_IO_ERROR)))
break;
- }
/*
* Set DTR to allow modem to know we're waiting. Do
@@ -1674,7 +1676,7 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
port->line, uart_type(port),
mmio ? "mmio:0x" : "port:",
mmio ? (unsigned long long)port->mapbase
- : (unsigned long long) port->iobase,
+ : (unsigned long long) port->iobase,
port->irq);
if (port->type == PORT_UNKNOWN) {
@@ -1682,8 +1684,7 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
return ret + 1;
}
- if(capable(CAP_SYS_ADMIN))
- {
+ if (capable(CAP_SYS_ADMIN)) {
mutex_lock(&state->mutex);
pm_state = state->pm_state;
if (pm_state)
@@ -1709,12 +1710,12 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
if (port->icount.overrun)
ret += sprintf(buf + ret, " oe:%d",
port->icount.overrun);
-
-#define INFOBIT(bit,str) \
+
+#define INFOBIT(bit, str) \
if (port->mctrl & (bit)) \
strncat(stat_buf, (str), sizeof(stat_buf) - \
strlen(stat_buf) - 2)
-#define STATBIT(bit,str) \
+#define STATBIT(bit, str) \
if (status & (bit)) \
strncat(stat_buf, (str), sizeof(stat_buf) - \
strlen(stat_buf) - 2)
@@ -1730,7 +1731,7 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
if (stat_buf[0])
stat_buf[0] = ' ';
strcat(stat_buf, "\n");
-
+
ret += sprintf(buf + ret, stat_buf);
} else {
strcat(buf, "\n");
@@ -1992,11 +1993,11 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port)
/*
* Wait for the transmitter to empty.
*/
- for (tries = 3; !ops->tx_empty(port) && tries; tries--) {
+ for (tries = 3; !ops->tx_empty(port) && tries; tries--)
msleep(10);
- }
if (!tries)
- printk(KERN_ERR "%s%s%s%d: Unable to drain transmitter\n",
+ printk(KERN_ERR "%s%s%s%d: Unable to drain "
+ "transmitter\n",
port->dev ? port->dev->bus_id : "",
port->dev ? ": " : "",
drv->dev_name, port->line);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 09:19:02 +0000