This is a note to let you know that I've just added the patch titled
amba: bus: fix refcount leak
to the 5.4-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:
amba-bus-fix-refcount-leak.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e4e0553df7eb5707f4b66896a610c5170dbcc0cd
Author: Peng Fan <peng.fan@xxxxxxx>
Date: Mon Aug 21 10:39:27 2023 +0800
amba: bus: fix refcount leak
[ Upstream commit e312cbdc11305568554a9e18a2ea5c2492c183f3 ]
commit 5de1540b7bc4 ("drivers/amba: create devices from device tree")
increases the refcount of of_node, but not releases it in
amba_device_release, so there is refcount leak. By using of_node_put
to avoid refcount leak.
Fixes: 5de1540b7bc4 ("drivers/amba: create devices from device tree")
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230821023928.3324283-1-peng.fan@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 702284bcd467c..252b0b43d50ee 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -364,6 +364,7 @@ static void amba_device_release(struct device *dev)
{
struct amba_device *d = to_amba_device(dev);
+ of_node_put(d->dev.of_node);
if (d->res.parent)
release_resource(&d->res);
kfree(d);
