diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/mv_i2c.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/i2c/mv_i2c.c b/drivers/i2c/mv_i2c.c index 291b2d7..7f52fa2 100644 --- a/drivers/i2c/mv_i2c.c +++ b/drivers/i2c/mv_i2c.c @@ -243,6 +243,11 @@ static int __i2c_read(struct mv_i2c *base, uchar chip, u8 *addr, int alen, debug("i2c_read(chip=0x%02x, addr=0x%02x, alen=0x%02x, " "len=0x%02x)\n", chip, *addr, alen, len); + if (len == 0) { + printf("reading zero byte is invalid\n"); + return -EINVAL; + } + i2c_reset(base); /* dummy chip address write */ |