diff options
Diffstat (limited to 'drivers/staging/dgnc/dgnc_neo.c')
| -rw-r--r-- | drivers/staging/dgnc/dgnc_neo.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index dc5a138d8d4a..cf22c7b725f9 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -1201,7 +1201,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch) ch->ch_cached_lsr = 0; /* Store how much space we have left in the queue */ - if ((qleft = tail - head - 1) < 0) + qleft = tail - head - 1; + if (qleft < 0) qleft += RQUEUEMASK + 1; /* |