iio: core: Fix suspicious sizeof usage

Pointer size is variours in different system, say 32bit for 4 and 64bit
for 8. The 'sizeof(infomask)' may lead to wrong bit numbers.

Signed-off-by: Orson Zhai <orson.zhai@spreadtrum.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 3ff91e02fee346a244cfbce3c2143ce4c3fd2bf0..795f53c4d75d6e54ed58e58ca626192fb716079d 100644 (file)
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1089,7 +1089,7 @@ static int iio_device_add_info_mask_type(struct iio_dev *indio_dev,
 {
        int i, ret, attrcount = 0;
 
-       for_each_set_bit(i, infomask, sizeof(infomask)*8) {
+       for_each_set_bit(i, infomask, sizeof(*infomask)*8) {
                if (i >= ARRAY_SIZE(iio_chan_info_postfix))
                        return -EINVAL;
                ret = __iio_add_chan_devattr(iio_chan_info_postfix[i],
@@ -1118,7 +1118,7 @@ static int iio_device_add_info_mask_type_avail(struct iio_dev *indio_dev,
        int i, ret, attrcount = 0;
        char *avail_postfix;
 
-       for_each_set_bit(i, infomask, sizeof(infomask) * 8) {
+       for_each_set_bit(i, infomask, sizeof(*infomask) * 8) {
                avail_postfix = kasprintf(GFP_KERNEL,
                                          "%s_available",
                                          iio_chan_info_postfix[i]);