[PATCH 3/3] Staging: iio/accel: Changed data type of val in store_measurement_mode to u8
Andreas Ruprecht
rupran at einserver.de
Sun Nov 27 22:17:42 UTC 2011
The code in sca3000_store_measurement_mode() uses the variable val to
do bitwise operations with an int mask and or-s it into st->rx[0] which
is an entry in a u8 array (see sca3000.h).
This means up to now values larger than a u8 were silently ignored and
just the lower 8 bits counted into the value that was written into
st->rx[0]. This code will return -ERANGE if the value in buf was too
large to fit into a u8.
Signed-off-by: Andreas Ruprecht <rupran at einserver.de>
---
drivers/staging/iio/accel/sca3000_core.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index a44a705..c3f1f6a 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -382,10 +382,10 @@ sca3000_store_measurement_mode(struct device *dev,
struct sca3000_state *st = iio_priv(indio_dev);
int ret;
int mask = 0x03;
- long val;
+ u8 val;
mutex_lock(&st->lock);
- ret = strict_strtol(buf, 10, &val);
+ ret = kstrtou8(buf, 10, &val);
if (ret)
goto error_ret;
ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
--
1.7.5.4
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