diff options
Diffstat (limited to 'drivers/s390/char/sclp_vt220.c')
| -rw-r--r-- | drivers/s390/char/sclp_vt220.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index ed507594e62..35707c04e61 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -524,11 +524,15 @@ sclp_vt220_close(struct tty_struct *tty, struct file *filp) * NOTE: include/linux/tty_driver.h specifies that a character should be * ignored if there is no room in the queue. This driver implements a different * semantic in that it will block when there is no more room left. + * + * FIXME: putchar can currently be called from BH and other non blocking + * handlers so this semantic isn't a good idea. */ -static void +static int sclp_vt220_put_char(struct tty_struct *tty, unsigned char ch) { __sclp_vt220_write(&ch, 1, 0, 0, 1); + return 1; } /* |