diff options
Diffstat (limited to 'drivers/s390/char/sclp_vt220.c')
| -rw-r--r-- | drivers/s390/char/sclp_vt220.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c index f7b258dfd52c..ed507594e62b 100644 --- a/drivers/s390/char/sclp_vt220.c +++ b/drivers/s390/char/sclp_vt220.c @@ -383,7 +383,7 @@ sclp_vt220_timeout(unsigned long data) */ static int __sclp_vt220_write(const unsigned char *buf, int count, int do_schedule, - int convertlf) + int convertlf, int may_schedule) { unsigned long flags; void *page; @@ -398,9 +398,8 @@ __sclp_vt220_write(const unsigned char *buf, int count, int do_schedule, /* Create a sclp output buffer if none exists yet */ if (sclp_vt220_current_request == NULL) { while (list_empty(&sclp_vt220_empty)) { - spin_unlock_irqrestore(&sclp_vt220_lock, - flags); - if (in_atomic()) + spin_unlock_irqrestore(&sclp_vt220_lock, flags); + if (in_interrupt() || !may_schedule) sclp_sync_wait(); else wait_event(sclp_vt220_waitq, @@ -450,7 +449,7 @@ __sclp_vt220_write(const unsigned char *buf, int count, int do_schedule, static int sclp_vt220_write(struct tty_struct *tty, const unsigned char *buf, int count) { - return __sclp_vt220_write(buf, count, 1, 0); + return __sclp_vt220_write(buf, count, 1, 0, 1); } #define SCLP_VT220_SESSION_ENDED 0x01 @@ -529,7 +528,7 @@ sclp_vt220_close(struct tty_struct *tty, struct file *filp) static void sclp_vt220_put_char(struct tty_struct *tty, unsigned char ch) { - __sclp_vt220_write(&ch, 1, 0, 0); + __sclp_vt220_write(&ch, 1, 0, 0, 1); } /* @@ -746,7 +745,7 @@ __initcall(sclp_vt220_tty_init); static void sclp_vt220_con_write(struct console *con, const char *buf, unsigned int count) { - __sclp_vt220_write((const unsigned char *) buf, count, 1, 1); + __sclp_vt220_write((const unsigned char *) buf, count, 1, 1, 0); } static struct tty_driver * |