[PATCH 3/3] Staging: iio/accel: Changed data type of val in store_measurement_mode to u8

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxxxxx>
---
 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

_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/devel


[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux