iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()

commit b2f5ad97645e1deb5ca9bcb7090084b92cae35d2 upstream.

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

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220510092431.1711284-1-zheyuma97@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index 3225de1f023b35fa66355fb61b49cef5504d1fa0..5311bee5475ff1d8a71110016fc2690fb7533218 100644 (file)
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -876,6 +876,7 @@ static int mpu3050_power_up(struct mpu3050 *mpu3050)
        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;
        }