This is a note to let you know that I've just added the patch titled
bus: vexpress-config: fix device reference leak
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:
bus-vexpress-config-fix-device-reference-leak.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@xxxxxxxxxxxxxxx> know about it.
>From c090959b9dd8c87703e275079aa4b4a824ba3f8e Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@xxxxxxxxxx>
Date: Wed, 16 Nov 2016 17:31:30 +0000
Subject: bus: vexpress-config: fix device reference leak
From: Johan Hovold <johan@xxxxxxxxxx>
commit c090959b9dd8c87703e275079aa4b4a824ba3f8e upstream.
Make sure to drop the reference to the parent device taken by
class_find_device() after populating the bus.
Fixes: 3b9334ac835b ("mfd: vexpress: Convert custom func API to regmap")
Acked-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/bus/vexpress-config.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/bus/vexpress-config.c
+++ b/drivers/bus/vexpress-config.c
@@ -171,6 +171,7 @@ static int vexpress_config_populate(stru
{
struct device_node *bridge;
struct device *parent;
+ int ret;
bridge = of_parse_phandle(node, "arm,vexpress,config-bridge", 0);
if (!bridge)
@@ -182,7 +183,11 @@ static int vexpress_config_populate(stru
if (WARN_ON(!parent))
return -ENODEV;
- return of_platform_populate(node, NULL, NULL, parent);
+ ret = of_platform_populate(node, NULL, NULL, parent);
+
+ put_device(parent);
+
+ return ret;
}
static int __init vexpress_config_init(void)
Patches currently in stable-queue which might be from johan@xxxxxxxxxx are
queue-4.9/usb-serial-ch341-fix-modem-control-and-b0-handling.patch
queue-4.9/powerpc-ibmebus-fix-further-device-reference-leaks.patch
queue-4.9/usb-serial-ch341-fix-control-message-error-handling.patch
queue-4.9/usb-serial-ch341-fix-open-and-resume-after-b0.patch
queue-4.9/usb-serial-ch341-fix-open-error-handling.patch
queue-4.9/usb-serial-ch341-fix-initial-modem-control-state.patch
queue-4.9/bus-vexpress-config-fix-device-reference-leak.patch
queue-4.9/powerpc-ibmebus-fix-device-reference-leaks-in-sysfs-interface.patch
queue-4.9/usb-serial-kl5kusb105-fix-line-state-error-handling.patch
queue-4.9/usb-serial-ch341-fix-resume-after-reset.patch
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