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tty: simplify buffer allocator cleanups 

Having cleaned up the allocators we might as well remove the inline helpers
for some of it

Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Alan Cox 2009-06-11 13:05:49 +01:00 committed by Linus Torvalds
parent c481c707fe
commit 0b4068a128
1 changed files with 5 additions and 17 deletions
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22
drivers/char/n_tty.c
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@ -73,17 +73,6 @@
#define ECHO_OP_SET_CANON_COL 0x81
#define ECHO_OP_ERASE_TAB 0x82
static inline unsigned char *alloc_buf(void)
{
gfp_t prio = in_interrupt() ? GFP_ATOMIC : GFP_KERNEL;
return kmalloc(N_TTY_BUF_SIZE, prio);
}
static inline void free_buf(unsigned char *buf)
{
kfree(buf);
}
static inline int tty_put_user(struct tty_struct *tty, unsigned char x,
unsigned char __user *ptr)
{
@ -1551,11 +1540,11 @@ static void n_tty_close(struct tty_struct *tty)
{
n_tty_flush_buffer(tty);
if (tty->read_buf) {
free_buf(tty->read_buf);
kfree(tty->read_buf);
tty->read_buf = NULL;
}
if (tty->echo_buf) {
free_buf(tty->echo_buf);
kfree(tty->echo_buf);
tty->echo_buf = NULL;
}
}
@ -1577,17 +1566,16 @@ static int n_tty_open(struct tty_struct *tty)
/* These are ugly. Currently a malloc failure here can panic */
if (!tty->read_buf) {
tty->read_buf = alloc_buf();
tty->read_buf = kzalloc(N_TTY_BUF_SIZE, GFP_KERNEL);
if (!tty->read_buf)
return -ENOMEM;
}
if (!tty->echo_buf) {
tty->echo_buf = alloc_buf();
tty->echo_buf = kzalloc(N_TTY_BUF_SIZE, GFP_KERNEL);
if (!tty->echo_buf)
return -ENOMEM;
}
memset(tty->read_buf, 0, N_TTY_BUF_SIZE);
memset(tty->echo_buf, 0, N_TTY_BUF_SIZE);
reset_buffer_flags(tty);
tty->column = 0;
n_tty_set_termios(tty, NULL);