[PATCH 4.19 27/49] iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()

From: Greg Kroah-Hartman
Date: Thu Jun 30 2022 - 10:00:04 EST


From: Zheyu Ma <zheyuma97@xxxxxxxxx>

commit b2f5ad97645e1deb5ca9bcb7090084b92cae35d2 upstream.

The driver should disable regulators when fails at regmap_update_bits().

Signed-off-by: Zheyu Ma <zheyuma97@xxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: <Stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220510092431.1711284-1-zheyuma97@xxxxxxxxx
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iio/gyro/mpu3050-core.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -873,6 +873,7 @@ static int mpu3050_power_up(struct mpu30
ret = regmap_update_bits(mpu3050->map, MPU3050_PWR_MGM,
MPU3050_PWR_MGM_SLEEP, 0);
if (ret) {
+ regulator_bulk_disable(ARRAY_SIZE(mpu3050->regs), mpu3050->regs);
dev_err(mpu3050->dev, "error setting power mode\n");
return ret;
}