[media] ttusb_dec: avoid the risk of go past buffer
authorMauro Carvalho Chehab <mchehab@s-opensource.com>
Thu, 22 Sep 2016 17:09:18 +0000 (14:09 -0300)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Thu, 22 Sep 2016 17:14:22 +0000 (14:14 -0300)
commit3cc2691227203c00cac1d82d6b0772224d5c87b2
tree5fca5d9d19b039f8937c14b9c2a04ae16e487d37
parente837d85c614e8d6e2d93daed972874ea3a8daec7
[media] ttusb_dec: avoid the risk of go past buffer

Fixes this smatch warning:
drivers/media/usb/ttusb-dec/ttusb_dec.c:243 ttusb_dec_handle_irq() error: buffer overflow 'rc_keys' 26 <= 126

As the RC keys should be enabled previously, via:
set_bit(rc_keys[i], input_dev->keybit);

It wouldn't go past the buffer in practice. Yet, as bad
things may happen when going past buffer, it doesn't hurt adding
a check here.

While here, fix CodingStyle issues on the routine.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
drivers/media/usb/ttusb-dec/ttusb_dec.c