Commit d7b76c91 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab

[media] af9013: Don't accept invalid bandwidth

If userspace sends an invalid bandwidth, it should either return
EINVAL or switch to auto mode.

This driver will go past an array and program the hardware on a
wrong way if this happens.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 1fa2337a
...@@ -605,6 +605,10 @@ static int af9013_set_frontend(struct dvb_frontend *fe) ...@@ -605,6 +605,10 @@ static int af9013_set_frontend(struct dvb_frontend *fe)
} }
} }
/* Return an error if can't find bandwidth or the right clock */
if (i == ARRAY_SIZE(coeff_lut))
return -EINVAL;
ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val, ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val,
sizeof(coeff_lut[i].val)); sizeof(coeff_lut[i].val));
} }
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment