Patch "iio: light: fix improper return value" has been added to the 4.9-stable tree

Patch "iio: light: fix improper return value" has been added to the 4.9-stable tree

[gregkh]

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

    iio: light: fix improper return value

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iio-light-fix-improper-return-value.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Tue Nov 28 10:49:28 CET 2017
From: Pan Bian <bianpan2016@163.com>
Date: Sat, 3 Dec 2016 17:24:17 +0800
Subject: iio: light: fix improper return value

From: Pan Bian <bianpan2016@163.com>


[ Upstream commit db4e5376d058af8924fafd0520a0942d92538d0e ]

In function cm3232_reg_init(), it returns 0 even if the last call to
i2c_smbus_write_byte_data() returns a negative value (indicates error).
As a result, the return value may be inconsistent with the execution
status, and the caller of cm3232_reg_init() will not be able to detect
the error. This patch fixes the bug.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188641

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/light/cm3232.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iio/light/cm3232.c
+++ b/drivers/iio/light/cm3232.c
@@ -119,7 +119,7 @@ static int cm3232_reg_init(struct cm3232
 	if (ret < 0)
 		dev_err(&chip->client->dev, "Error writing reg_cmd\n");
 
-	return 0;
+	return ret;
 }
 
 /**


Patches currently in stable-queue which might be from bianpan2016@163.com are

queue-4.9/iio-light-fix-improper-return-value.patch
queue-4.9/net-3com-typhoon-typhoon_init_one-fix-incorrect-return-values.patch
queue-4.9/btrfs-return-the-actual-error-value-from-from-btrfs_uuid_tree_iterate.patch
queue-4.9/staging-iio-cdc-fix-improper-return-value.patch