From: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> [ Upstream commit d7b76c91f471413de9ded837bddeca2164786571 ] 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@xxxxxxxxxxxxxxx Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> --- drivers/media/dvb-frontends/af9013.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/dvb-frontends/af9013.c b/drivers/media/dvb-frontends/af9013.c index 8001690..ba6c8f6 100644 --- a/drivers/media/dvb-frontends/af9013.c +++ b/drivers/media/dvb-frontends/af9013.c @@ -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, sizeof(coeff_lut[i].val)); } -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html