diff options
author | Alan Cox <alan@linux.intel.com> | 2009-06-11 08:05:49 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 11:51:02 -0400 |
commit | 0b4068a1287b02018d1b3159e7be6f27f3e3e68c (patch) | |
tree | 2b39a25c25cfda6ccfe705dab6564186471c138a /drivers/char | |
parent | c481c707fe4b07783d9a2499a9bbbb94497e9b18 (diff) |
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>
Diffstat (limited to 'drivers/char')
-rw-r--r-- | drivers/char/n_tty.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index b4b12b4f0ac4..94a5d5020abc 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c | |||
@@ -73,17 +73,6 @@ | |||
73 | #define ECHO_OP_SET_CANON_COL 0x81 | 73 | #define ECHO_OP_SET_CANON_COL 0x81 |
74 | #define ECHO_OP_ERASE_TAB 0x82 | 74 | #define ECHO_OP_ERASE_TAB 0x82 |
75 | 75 | ||
76 | static inline unsigned char *alloc_buf(void) | ||
77 | { | ||
78 | gfp_t prio = in_interrupt() ? GFP_ATOMIC : GFP_KERNEL; | ||
79 | return kmalloc(N_TTY_BUF_SIZE, prio); | ||
80 | } | ||
81 | |||
82 | static inline void free_buf(unsigned char *buf) | ||
83 | { | ||
84 | kfree(buf); | ||
85 | } | ||
86 | |||
87 | static inline int tty_put_user(struct tty_struct *tty, unsigned char x, | 76 | static inline int tty_put_user(struct tty_struct *tty, unsigned char x, |
88 | unsigned char __user *ptr) | 77 | unsigned char __user *ptr) |
89 | { | 78 | { |
@@ -1551,11 +1540,11 @@ static void n_tty_close(struct tty_struct *tty) | |||
1551 | { | 1540 | { |
1552 | n_tty_flush_buffer(tty); | 1541 | n_tty_flush_buffer(tty); |
1553 | if (tty->read_buf) { | 1542 | if (tty->read_buf) { |
1554 | free_buf(tty->read_buf); | 1543 | kfree(tty->read_buf); |
1555 | tty->read_buf = NULL; | 1544 | tty->read_buf = NULL; |
1556 | } | 1545 | } |
1557 | if (tty->echo_buf) { | 1546 | if (tty->echo_buf) { |
1558 | free_buf(tty->echo_buf); | 1547 | kfree(tty->echo_buf); |
1559 | tty->echo_buf = NULL; | 1548 | tty->echo_buf = NULL; |
1560 | } | 1549 | } |
1561 | } | 1550 | } |
@@ -1577,17 +1566,16 @@ static int n_tty_open(struct tty_struct *tty) | |||
1577 | 1566 | ||
1578 | /* These are ugly. Currently a malloc failure here can panic */ | 1567 | /* These are ugly. Currently a malloc failure here can panic */ |
1579 | if (!tty->read_buf) { | 1568 | if (!tty->read_buf) { |
1580 | tty->read_buf = alloc_buf(); | 1569 | tty->read_buf = kzalloc(N_TTY_BUF_SIZE, GFP_KERNEL); |
1581 | if (!tty->read_buf) | 1570 | if (!tty->read_buf) |
1582 | return -ENOMEM; | 1571 | return -ENOMEM; |
1583 | } | 1572 | } |
1584 | if (!tty->echo_buf) { | 1573 | if (!tty->echo_buf) { |
1585 | tty->echo_buf = alloc_buf(); | 1574 | tty->echo_buf = kzalloc(N_TTY_BUF_SIZE, GFP_KERNEL); |
1575 | |||
1586 | if (!tty->echo_buf) | 1576 | if (!tty->echo_buf) |
1587 | return -ENOMEM; | 1577 | return -ENOMEM; |
1588 | } | 1578 | } |
1589 | memset(tty->read_buf, 0, N_TTY_BUF_SIZE); | ||
1590 | memset(tty->echo_buf, 0, N_TTY_BUF_SIZE); | ||
1591 | reset_buffer_flags(tty); | 1579 | reset_buffer_flags(tty); |
1592 | tty->column = 0; | 1580 | tty->column = 0; |
1593 | n_tty_set_termios(tty, NULL); | 1581 | n_tty_set_termios(tty, NULL); |