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path: root/drivers/s390/char/sclp_vt220.c
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Diffstat (limited to 'drivers/s390/char/sclp_vt220.c')
-rw-r--r--drivers/s390/char/sclp_vt220.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index fa40057fd18d..da2496306c04 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -604,12 +604,12 @@ sclp_vt220_flush_chars(struct tty_struct *tty)
* to change as output buffers get emptied, or if the output flow
* control is acted.
*/
-static int
+static unsigned int
sclp_vt220_write_room(struct tty_struct *tty)
{
unsigned long flags;
struct list_head *l;
- int count;
+ unsigned int count;
spin_lock_irqsave(&sclp_vt220_lock, flags);
count = 0;
@@ -624,16 +624,15 @@ sclp_vt220_write_room(struct tty_struct *tty)
/*
* Return number of buffered chars.
*/
-static int
+static unsigned int
sclp_vt220_chars_in_buffer(struct tty_struct *tty)
{
unsigned long flags;
struct list_head *l;
struct sclp_vt220_request *r;
- int count;
+ unsigned int count = 0;
spin_lock_irqsave(&sclp_vt220_lock, flags);
- count = 0;
if (sclp_vt220_current_request != NULL)
count = sclp_vt220_chars_stored(sclp_vt220_current_request);
list_for_each(l, &sclp_vt220_outqueue) {