diff options
Diffstat (limited to 'drivers/s390/char/con3215.c')
| -rw-r--r-- | drivers/s390/char/con3215.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index 99361618c31f..0b0324fe4aff 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -79,8 +79,8 @@ struct raw3215_info { struct ccw_device *cdev; /* device for tty driver */ spinlock_t *lock; /* pointer to irq lock */ int flags; /* state flags */ - char *buffer; /* pointer to output buffer */ - char *inbuf; /* pointer to input buffer */ + u8 *buffer; /* pointer to output buffer */ + u8 *inbuf; /* pointer to input buffer */ int head; /* first free byte in output buffer */ int count; /* number of bytes in output buffer */ int written; /* number of bytes in write requests */ @@ -89,7 +89,6 @@ struct raw3215_info { wait_queue_head_t empty_wait; /* wait queue for flushing */ struct timer_list timer; /* timer for delayed output */ int line_pos; /* position on the line (for tabs) */ - char ubuffer[80]; /* copy_from_user buffer */ }; /* array of 3215 devices structures */ @@ -523,12 +522,14 @@ static unsigned int raw3215_make_room(struct raw3215_info *raw, * string without blocking. * Return value is the number of bytes copied. */ -static unsigned int raw3215_addtext(const char *str, unsigned int length, +static unsigned int raw3215_addtext(const u8 *str, size_t length, struct raw3215_info *raw, int opmode, unsigned int todrop) { - unsigned int c, ch, i, blanks, expanded_size = 0; + unsigned int i, blanks, expanded_size = 0; unsigned int column = raw->line_pos; + size_t c; + u8 ch; if (opmode == RAW3215_COUNT) todrop = 0; @@ -559,7 +560,7 @@ static unsigned int raw3215_addtext(const char *str, unsigned int length, if (todrop && expanded_size < todrop) /* Drop head data */ continue; for (i = 0; i < blanks; i++) { - raw->buffer[raw->head] = (char)_ascebc[(int)ch]; + raw->buffer[raw->head] = _ascebc[ch]; raw->head = (raw->head + 1) & (RAW3215_BUFFER_SIZE - 1); raw->count++; } @@ -571,8 +572,8 @@ static unsigned int raw3215_addtext(const char *str, unsigned int length, /* * String write routine for 3215 devices */ -static void raw3215_write(struct raw3215_info *raw, const char *str, - unsigned int length) +static void raw3215_write(struct raw3215_info *raw, const u8 *str, + size_t length) { unsigned int count, avail; unsigned long flags; @@ -597,7 +598,7 @@ static void raw3215_write(struct raw3215_info *raw, const char *str, /* * Put character routine for 3215 devices */ -static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch) +static void raw3215_putchar(struct raw3215_info *raw, u8 ch) { raw3215_write(raw, &ch, 1); } @@ -824,12 +825,10 @@ static struct ccw_driver raw3215_ccw_driver = { .int_class = IRQIO_C15, }; -static void handle_write(struct raw3215_info *raw, const char *str, int count) +static void handle_write(struct raw3215_info *raw, const u8 *str, size_t count) { - int i; - while (count > 0) { - i = min_t(int, count, RAW3215_BUFFER_SIZE - 1); + size_t i = min_t(size_t, count, RAW3215_BUFFER_SIZE - 1); raw3215_write(raw, str, i); count -= i; str += i; |