patch "iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()" added to char-misc-linus

patch "iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()" added to char-misc-linus

[gregkh]

This is a note to let you know that I've just added the patch titled

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

to my char-misc git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.

If you have any questions about this process, please let me know.


From b2f5ad97645e1deb5ca9bcb7090084b92cae35d2 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Tue, 10 May 2022 17:24:31 +0800
Subject: iio: gyro: mpu3050: Fix the error handling in mpu3050_power_up()

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>
---
 drivers/iio/gyro/mpu3050-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index ea387efab62d..f4c2f4cb4834 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -874,6 +874,7 @@ 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;
 	}
-- 
2.36.1