Patch "staging: android: ion_test: fix check of platform_device_register_simple() error code" has been added to the 4.4-stable tree

Patch "staging: android: ion_test: fix check of platform_device_register_simple() error code" has been added to the 4.4-stable tree

[gregkh]

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

    staging: android: ion_test: fix check of platform_device_register_simple() error code

to the 4.4-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:
     staging-android-ion_test-fix-check-of-platform_device_register_simple-error-code.patch
and it can be found in the queue-4.4 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 ccbc2a9e7878ff09bcaed4893c2a2d3adbb797e2 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vz@mleia.com>
Date: Wed, 23 Mar 2016 00:38:43 +0200
Subject: staging: android: ion_test: fix check of platform_device_register_simple() error code

From: Vladimir Zapolskiy <vz@mleia.com>

commit ccbc2a9e7878ff09bcaed4893c2a2d3adbb797e2 upstream.

On error platform_device_register_simple() returns ERR_PTR() value,
check for NULL always fails. The change corrects the check itself and
propagates the returned error upwards.

Fixes: 81fb0b901397 ("staging: android: ion_test: unregister the platform device")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/android/ion/ion_test.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/staging/android/ion/ion_test.c
+++ b/drivers/staging/android/ion/ion_test.c
@@ -285,8 +285,8 @@ static int __init ion_test_init(void)
 {
 	ion_test_pdev = platform_device_register_simple("ion-test",
 							-1, NULL, 0);
-	if (!ion_test_pdev)
-		return -ENODEV;
+	if (IS_ERR(ion_test_pdev))
+		return PTR_ERR(ion_test_pdev);
 
 	return platform_driver_probe(&ion_test_platform_driver, ion_test_probe);
 }


Patches currently in stable-queue which might be from vz@mleia.com are

queue-4.4/crypto-atmel-fix-checks-of-error-code-returned-by-devm_ioremap_resource.patch
queue-4.4/crypto-ux500-fix-checks-of-error-code-returned-by-devm_ioremap_resource.patch
queue-4.4/staging-android-ion_test-fix-check-of-platform_device_register_simple-error-code.patch