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| author | Arnd Bergmann <arnd@arndb.de> | 2010-06-01 22:53:01 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-10 13:47:43 -0700 |
| commit | ec79d6056de58511d8e46d9ae59d3878f958dc3e (patch) | |
| tree | 8e73cf399c4cb3c31dbf3caced385cfc018a706a /drivers/char/n_r3964.c | |
| parent | 3f582b8c11014e4ce310d9839fb335164195333f (diff) | |
| download | lwn-ec79d6056de58511d8e46d9ae59d3878f958dc3e.tar.gz lwn-ec79d6056de58511d8e46d9ae59d3878f958dc3e.zip | |
tty: replace BKL with a new tty_lock
As a preparation for replacing the big kernel lock
in the TTY layer, wrap all the callers in new
macros tty_lock, tty_lock_nested and tty_unlock.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char/n_r3964.c')
| -rw-r--r-- | drivers/char/n_r3964.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c index c1d8b54c816d..f4bd2591e39f 100644 --- a/drivers/char/n_r3964.c +++ b/drivers/char/n_r3964.c @@ -1067,7 +1067,7 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file, TRACE_L("read()"); - lock_kernel(); + tty_lock(); pClient = findClient(pInfo, task_pid(current)); if (pClient) { @@ -1109,7 +1109,7 @@ static ssize_t r3964_read(struct tty_struct *tty, struct file *file, } ret = -EPERM; unlock: - unlock_kernel(); + tty_unlock(); return ret; } @@ -1158,7 +1158,7 @@ static ssize_t r3964_write(struct tty_struct *tty, struct file *file, pHeader->locks = 0; pHeader->owner = NULL; - lock_kernel(); + tty_lock(); pClient = findClient(pInfo, task_pid(current)); if (pClient) { @@ -1177,7 +1177,7 @@ static ssize_t r3964_write(struct tty_struct *tty, struct file *file, add_tx_queue(pInfo, pHeader); trigger_transmit(pInfo); - unlock_kernel(); + tty_unlock(); return 0; } |