diff options
Diffstat (limited to 'drivers/media/rc/iguanair.c')
| -rw-r--r-- | drivers/media/rc/iguanair.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/media/rc/iguanair.c b/drivers/media/rc/iguanair.c index 30e24da67226..7daac8bab83b 100644 --- a/drivers/media/rc/iguanair.c +++ b/drivers/media/rc/iguanair.c @@ -347,26 +347,23 @@ static int iguanair_set_tx_mask(struct rc_dev *dev, uint32_t mask) static int iguanair_tx(struct rc_dev *dev, unsigned *txbuf, unsigned count) { struct iguanair *ir = dev->priv; - uint8_t space; - unsigned i, size, periods, bytes; + unsigned int i, size, p, periods; int rc; mutex_lock(&ir->lock); /* convert from us to carrier periods */ - for (i = space = size = 0; i < count; i++) { + for (i = size = 0; i < count; i++) { periods = DIV_ROUND_CLOSEST(txbuf[i] * ir->carrier, 1000000); - bytes = DIV_ROUND_UP(periods, 127); - if (size + bytes > ir->bufsize) { - rc = -EINVAL; - goto out; - } while (periods) { - unsigned p = min(periods, 127u); - ir->packet->payload[size++] = p | space; + p = min(periods, 127u); + if (size >= ir->bufsize) { + rc = -EINVAL; + goto out; + } + ir->packet->payload[size++] = p | ((i & 1) ? 0x80 : 0); periods -= p; } - space ^= 0x80; } ir->packet->header.start = 0; |