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authorJean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>2022-06-09 12:23:01 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2022-06-19 17:22:49 +0100
commit106b391e1b859100a3f38f0ad874236e9be06bde (patch)
tree348b07492bbd87f56791eac2cfc47411713c33ad /drivers/iio/imu
parentf1a633b15cd5371a2a83f02c513984e51132dd68 (diff)
iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
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: 31c24c1e93c3 ("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>
Diffstat (limited to 'drivers/iio/imu')
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600.h1
-rw-r--r--drivers/iio/imu/inv_icm42600/inv_icm42600_core.c2
2 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/inv_icm42600/inv_icm42600.h
index c0f5059b13b3..995a9dc06521 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h
@@ -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,
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
index 86858da9cc38..ca85fccc9839 100644
--- a/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
+++ b/drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
@@ -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;
}