diff options
Diffstat (limited to 'drivers/char/tty_io.c')
| -rw-r--r-- | drivers/char/tty_io.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index df5a8efc7..3951b5422 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -628,10 +628,12 @@ static ssize_t tty_read(struct file * file, char * buf, size_t count, return -ERESTARTSYS; } #endif + lock_kernel(); if (tty->ldisc.read) i = (tty->ldisc.read)(tty,file,buf,count); else i = -EIO; + unlock_kernel(); if (i > 0) inode->i_atime = CURRENT_TIME; return i; @@ -658,7 +660,9 @@ static inline ssize_t do_tty_write( unsigned long size = PAGE_SIZE*2; if (size > count) size = count; + lock_kernel(); ret = write(tty, file, buf, size); + unlock_kernel(); if (ret <= 0) break; written += ret; @@ -2034,11 +2038,7 @@ long __init console_init(long kmem_start, long kmem_end) memcpy(tty_std_termios.c_cc, INIT_C_CC, NCCS); tty_std_termios.c_iflag = ICRNL | IXON; tty_std_termios.c_oflag = OPOST | ONLCR; -#if CONFIG_COBALT_SERIAL - tty_std_termios.c_cflag = B115200 | CS8 | CREAD | HUPCL; -#else tty_std_termios.c_cflag = B38400 | CS8 | CREAD | HUPCL; -#endif tty_std_termios.c_lflag = ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHOCTL | ECHOKE | IEXTEN; @@ -2131,10 +2131,8 @@ __initfunc(int tty_init(void)) if (tty_register_driver(&dev_console_driver)) panic("Couldn't register /dev/tty0 driver\n"); -#ifndef CONFIG_COBALT_MICRO_SERVER kbd_init(); #endif -#endif #ifdef CONFIG_ESPSERIAL /* init ESP before rs, so rs doesn't see the port */ espserial_init(); #endif |