diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-09-26 12:10:37 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-10-17 08:51:26 +0100 |
| commit | 7578847b5949db3a75163908bd99c46d27e8b19f (patch) | |
| tree | d7f9cb5f42482f833253c8f758710e8c87df1d09 /drivers/iio/adc | |
| parent | 0dec4d2f2636b9e54d9d29f17afc7687c5407f78 (diff) | |
iio: adc: mcp3911: fix sizeof() vs ARRAY_SIZE() bug
This code uses sizeof() instead of ARRAY_SIZE() so it reads beyond the
end of the mcp3911_osr_table[] array.
Fixes: 6d965885f4ea ("iio: adc: mcp3911: add support for oversampling ratio")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Link: https://lore.kernel.org/r/YzFsjY3xLHUQMjVr@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/mcp3911.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c index b35fd2c9c3c0..015a9ffdb26a 100644 --- a/drivers/iio/adc/mcp3911.c +++ b/drivers/iio/adc/mcp3911.c @@ -248,7 +248,7 @@ static int mcp3911_write_raw(struct iio_dev *indio_dev, break; case IIO_CHAN_INFO_OVERSAMPLING_RATIO: - for (int i = 0; i < sizeof(mcp3911_osr_table); i++) { + for (int i = 0; i < ARRAY_SIZE(mcp3911_osr_table); i++) { if (val == mcp3911_osr_table[i]) { val = FIELD_PREP(MCP3911_CONFIG_OSR, i); ret = mcp3911_update(adc, MCP3911_REG_CONFIG, MCP3911_CONFIG_OSR, |