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Diffstat (limited to 'drivers/media/dvb-frontends/si21xx.c')
| -rw-r--r-- | drivers/media/dvb-frontends/si21xx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/si21xx.c b/drivers/media/dvb-frontends/si21xx.c index 73b47cc6a13..16850e2bf02 100644 --- a/drivers/media/dvb-frontends/si21xx.c +++ b/drivers/media/dvb-frontends/si21xx.c @@ -236,6 +236,9 @@ static int si21_writeregs(struct si21xx_state *state, u8 reg1, .len = len + 1 }; + if (len > sizeof(buf) - 1) + return -EINVAL; + msg.buf[0] = reg1; memcpy(msg.buf + 1, data, len); |