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iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)

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The 0 value used for INV_CHIP_ICM42600 was not working since the
match in i2c/spi was checking against NULL value.

To keep this check, add a first INV_CHIP_INVALID 0 value as safe
guard.

Fixes: 31c24c1e93 ("iio: imu: inv_icm42600: add core of new inv_icm42600 driver")
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20220609102301.4794-1-jmaneyrol@invensense.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jean-Baptiste Maneyrol 2022-06-09 12:23:01 +02:00 committed by Jonathan Cameron
parent f1a633b15c
commit 106b391e1b
2 changed files with 2 additions and 1 deletions
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1
drivers/iio/imu/inv_icm42600/inv_icm42600.h
View file

@ -17,6 +17,7 @@
#include "inv_icm42600_buffer.h"
enum inv_icm42600_chip {
INV_CHIP_INVALID,
INV_CHIP_ICM42600,
INV_CHIP_ICM42602,
INV_CHIP_ICM42605,

2
drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
View file

@ -565,7 +565,7 @@ int inv_icm42600_core_probe(struct regmap *regmap, int chip, int irq,
bool open_drain;
int ret;
if (chip < 0 || chip >= INV_CHIP_NB) {
if (chip <= INV_CHIP_INVALID || chip >= INV_CHIP_NB) {
dev_err(dev, "invalid chip = %d\n", chip);
return -ENODEV;
}