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[media] rc: make s_tx_mask consistent

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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>
This commit is contained in:
Sean Young 2016-07-10 13:34:32 -03:00 committed by Mauro Carvalho Chehab
parent 9e422f64fa
commit 20f5a827cf
2 changed files with 10 additions and 0 deletions
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6
drivers/media/rc/mceusb.c
View file

@ -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

4
drivers/media/rc/winbond-cir.c
View file

@ -615,6 +615,10 @@ wbcir_txmask(struct rc_dev *dev, u32 mask)
unsigned long flags;
u8 val;
/* return the number of transmitters */
if (mask > 15)
return 4;
/* Four outputs, only one output can be enabled at a time */
switch (mask) {
case 0x1: