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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2008-04-28 02:13:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:28 -0700 |
| commit | 032c17e8afa150412810ffc19913ecd5eb531d57 (patch) | |
| tree | 64169680149f0d8a9ff01eeeeaa2efd151e9968c | |
| parent | f85e7cdc3fd0db65ef1442476b82ced0f01c5c19 (diff) | |
| download | lwn-032c17e8afa150412810ffc19913ecd5eb531d57.tar.gz lwn-032c17e8afa150412810ffc19913ecd5eb531d57.zip | |
crisv10: prepare for BKL push down
Just the modem bits this time
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/serial/crisv10.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c index 383c4e660cd5..88e7c1d5b919 100644 --- a/drivers/serial/crisv10.c +++ b/drivers/serial/crisv10.c @@ -3582,6 +3582,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file, { struct e100_serial *info = (struct e100_serial *)tty->driver_data; + lock_kernel(); + if (clear & TIOCM_RTS) e100_rts(info, 0); if (clear & TIOCM_DTR) @@ -3601,6 +3603,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file, e100_ri_out(info, 1); if (set & TIOCM_CD) e100_cd_out(info, 1); + + unlock_kernel(); return 0; } @@ -3610,6 +3614,7 @@ rs_tiocmget(struct tty_struct *tty, struct file *file) struct e100_serial *info = (struct e100_serial *)tty->driver_data; unsigned int result; + lock_kernel(); result = (!E100_RTS_GET(info) ? TIOCM_RTS : 0) | (!E100_DTR_GET(info) ? TIOCM_DTR : 0) @@ -3618,6 +3623,8 @@ rs_tiocmget(struct tty_struct *tty, struct file *file) | (!E100_CD_GET(info) ? TIOCM_CAR : 0) | (!E100_CTS_GET(info) ? TIOCM_CTS : 0); + unlock_kernel(); + #ifdef SERIAL_DEBUG_IO printk(KERN_DEBUG "ser%i: modem state: %i 0x%08X\n", info->line, result, result); |