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authorAlan Cox <alan@redhat.com>2009-01-02 13:41:04 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-02 10:19:35 -0800
commit300a6204b4d45dc70359b24384ad04ae899179c3 (patch)
tree2e4114fe82ded5357921b9c1d889086d840e465b /drivers/char/n_tty.c
parenta88a69c91256418c5907c2f1f8a0ec0a36f9e6cc (diff)
downloadlinux-linaro-stable-300a6204b4d45dc70359b24384ad04ae899179c3.tar.gz
n_tty: clean up coding style
Now the main work is done its polishing time Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/n_tty.c')
-rw-r--r--drivers/char/n_tty.c29
1 files changed, 13 insertions, 16 deletions
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index a9bc5764fe75..a223823544bf 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -47,8 +47,8 @@
#include <linux/bitops.h>
#include <linux/audit.h>
#include <linux/file.h>
+#include <linux/uaccess.h>
-#include <asm/uaccess.h>
#include <asm/system.h>
/* number of characters left in xmit buffer before select has we have room */
@@ -309,7 +309,7 @@ static int do_output_char(unsigned char c, struct tty_struct *tty, int space)
if (!space)
return -1;
-
+
switch (c) {
case '\n':
if (O_ONLRET(tty))
@@ -417,8 +417,7 @@ static ssize_t process_output_block(struct tty_struct *tty,
mutex_lock(&tty->output_lock);
space = tty_write_room(tty);
- if (!space)
- {
+ if (!space) {
mutex_unlock(&tty->output_lock);
return 0;
}
@@ -521,7 +520,7 @@ static void process_echoes(struct tty_struct *tty)
if (opp == buf_end)
opp -= N_TTY_BUF_SIZE;
op = *opp;
-
+
switch (op) {
unsigned int num_chars, num_bs;
@@ -621,7 +620,8 @@ static void process_echoes(struct tty_struct *tty)
} else {
int retval;
- if ((retval = do_output_char(c, tty, space)) < 0)
+ retval = do_output_char(c, tty, space);
+ if (retval < 0)
break;
space -= retval;
cp += 1;
@@ -675,8 +675,7 @@ static void add_echo_byte(unsigned char c, struct tty_struct *tty)
* Since the buffer start position needs to be advanced,
* be sure to step by a whole operation byte group.
*/
- if (tty->echo_buf[tty->echo_pos] == ECHO_OP_START)
- {
+ if (tty->echo_buf[tty->echo_pos] == ECHO_OP_START) {
if (tty->echo_buf[(tty->echo_pos + 1) &
(N_TTY_BUF_SIZE - 1)] ==
ECHO_OP_ERASE_TAB) {
@@ -771,7 +770,7 @@ static void echo_erase_tab(unsigned int num_chars, int after_tab,
/* Set the high bit as a flag if num_chars is after a previous tab */
if (after_tab)
num_chars |= 0x80;
-
+
add_echo_byte(num_chars, tty);
mutex_unlock(&tty->echo_lock);
@@ -959,8 +958,7 @@ static void eraser(unsigned char c, struct tty_struct *tty)
if (c == '\t') {
after_tab = 1;
break;
- }
- else if (iscntrl(c)) {
+ } else if (iscntrl(c)) {
if (L_ECHOCTL(tty))
num_chars += 2;
} else if (!is_continuation(c, tty)) {
@@ -1112,7 +1110,7 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c)
if (I_ISTRIP(tty))
c &= 0x7f;
if (I_IUCLC(tty) && L_IEXTEN(tty))
- c=tolower(c);
+ c = tolower(c);
if (tty->stopped && !tty->flow_stopped && I_IXON(tty) &&
I_IXANY(tty) && c != START_CHAR(tty) && c != STOP_CHAR(tty) &&
@@ -1126,8 +1124,7 @@ static inline void n_tty_receive_char(struct tty_struct *tty, unsigned char c)
if (c == START_CHAR(tty)) {
start_tty(tty);
process_echoes(tty);
- }
- else if (c == STOP_CHAR(tty))
+ } else if (c == STOP_CHAR(tty))
stop_tty(tty);
}
return;
@@ -1335,7 +1332,7 @@ static void n_tty_write_wakeup(struct tty_struct *tty)
{
/* Write out any echoed characters that are still pending */
process_echoes(tty);
-
+
if (tty->fasync) {
set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
kill_fasync(&tty->fasync, SIGIO, POLL_OUT);
@@ -1942,7 +1939,7 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file,
/* Write out any echoed characters that are still pending */
process_echoes(tty);
-
+
add_wait_queue(&tty->write_wait, &wait);
while (1) {
set_current_state(TASK_INTERRUPTIBLE);