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iio: accel: bma400: Fix smatch warning based on use of unintialized value. 

Only specific bits in this value are ever used and those are initialized,
but that is complex to reason about in a checker. Hence, initialize
the value to zero and avoid the complexity.

Smatch warning:
drivers/iio/accel/bma400_core.c:1287 bma400_tap_event_en()
error: uninitialized symbol 'field_value'.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jagath Jog J <jagathjog1996@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Jagath Jog J <jagathjog1996@gmail.com>
Fixes: 961db2da15 ("iio: accel: bma400: Add support for single and double tap events")
Link: https://lore.kernel.org/r/20220917131401.2815486-1-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jonathan Cameron 2022-09-17 14:14:01 +01:00
parent 3259b99e0a
commit 6ee2a7058f
1 changed files with 2 additions and 1 deletions
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3
drivers/iio/accel/bma400_core.c
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@ -1184,7 +1184,8 @@ static int bma400_activity_event_en(struct bma400_data *data,
enum iio_event_direction dir,
int state)
{
int ret, reg, msk, value, field_value;
int ret, reg, msk, value;
int field_value = 0;
switch (dir) {
case IIO_EV_DIR_RISING: