patch "iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler" added to staging-linus

patch "iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler" added to staging-linus

[gregkh]

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

    iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler

to my staging git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-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 6dbbbe4cfd398704b72b21c1d4a5d3807e909d60 Mon Sep 17 00:00:00 2001
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Mon, 1 Mar 2021 16:04:21 +0800
Subject: iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler

There is one regmap_bulk_read() call in mpu3050_trigger_handler
that we have caught its return value bug lack further handling.
Check and terminate the execution flow just like the other three
regmap_bulk_read() calls in this function.

Fixes: 3904b28efb2c7 ("iio: gyro: Add driver for the MPU-3050 gyroscope")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210301080421.13436-1-dinghao.liu@zju.edu.cn
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/gyro/mpu3050-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index dfa31a23500f..ac90be03332a 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -551,6 +551,8 @@ static irqreturn_t mpu3050_trigger_handler(int irq, void *p)
 					       MPU3050_FIFO_R,
 					       &fifo_values[offset],
 					       toread);
+			if (ret)
+				goto out_trigger_unlock;
 
 			dev_dbg(mpu3050->dev,
 				"%04x %04x %04x %04x %04x\n",
-- 
2.30.2