diff options
| author | Sean Young <sean@mess.org> | 2016-07-10 18:34:32 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-15 16:46:55 +0200 |
| commit | 20f5a827cf4b8fa11d5897e4d92d1a480f2cf58b (patch) | |
| tree | b9a9b3f66a82b5009692dd2a1cb26b1da1af6d91 /drivers/media/rc/mceusb.c | |
| parent | [media] af9035: fix dual tuner detection with PCTV 79e (diff) | |
| download | linux-20f5a827cf4b8fa11d5897e4d92d1a480f2cf58b.tar.xz linux-20f5a827cf4b8fa11d5897e4d92d1a480f2cf58b.zip | |
[media] rc: make s_tx_mask consistent
When s_tx_mask is given an invalid bitmask, the number of transmitters
should be returned. See the LIRC_SET_TRANSMITTER_MASK lirc ioctl
documentation.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/rc/mceusb.c')
| -rw-r--r-- | drivers/media/rc/mceusb.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c index 5cf2e749b9eb..2d1585d9bd9e 100644 --- a/drivers/media/rc/mceusb.c +++ b/drivers/media/rc/mceusb.c @@ -887,6 +887,12 @@ static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) { struct mceusb_dev *ir = dev->priv; + /* return number of transmitters */ + int emitters = ir->num_txports ? ir->num_txports : 2; + + if (mask >= (1 << emitters)) + return emitters; + if (ir->flags.tx_mask_normal) ir->tx_mask = mask; else |