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Patch "mfd: core: Fix device reference leak in mfd_clone_cell" has been added to the 4.8-stable tree

PATCH [email protected] 1 participant 1 message Nov 21, 2016

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

mfd: core: Fix device reference leak in mfd_clone_cell

to the 4.8-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:
mfd-core-fix-device-reference-leak-in-mfd_clone_cell.patch
and it can be found in the queue-4.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 722f191080de641f023feaa7d5648caf377844f5 Mon Sep 17 00:00:00 2001

From: Johan Hovold <[email protected]>
Date: Tue, 1 Nov 2016 11:38:18 +0100
Subject: mfd: core: Fix device reference leak in mfd_clone_cell

From: Johan Hovold <[email protected]>

commit 722f191080de641f023feaa7d5648caf377844f5 upstream.

Make sure to drop the reference taken by bus_find_device_by_name() before returning from mfd_clone_cell().

Fixes a9bbba996302 ("mfd: add platform_device sharing support for mfd")
---
 drivers/mfd/mfd-core.c |    2 ++
 1 file changed, 2 insertions(+)
drivers/mfd/mfd-core.c +2 -0
@@ -399,6 +399,8 @@ int mfd_clone_cell(const char *cell, con
 					clones[i]);
 	}
 
+	put_device(dev);
+
 	return 0;
 }
 EXPORT_SYMBOL(mfd_clone_cell);

Patches currently in stable-queue which might be from [email protected] are

queue-4.8/mfd-core-fix-device-reference-leak-in-mfd_clone_cell.patch queue-4.8/pm-sleep-fix-device-reference-leak-in-test_suspend.patch queue-4.8/uwb-fix-device-reference-leaks.patch