This is a note to let you know that I've just added the patch titled
of: device: Fix missing of_node_put() in of_dma_set_restricted_buffer
to the 5.18-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:
of-device-fix-missing-of_node_put-in-of_dma_set_rest.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c509e785e617c6d5af4e9b07374d388d59b9d65a
Author: Liang He <windhl@xxxxxxx>
Date: Sat Jul 2 09:44:49 2022 +0800
of: device: Fix missing of_node_put() in of_dma_set_restricted_buffer
[ Upstream commit d17e37c41b7ed38459957a5d2968ba61516fd5c2 ]
We should use of_node_put() for the reference 'node' returned by
of_parse_phandle() which will increase the refcount.
Fixes: fec9b625095f ("of: Add plumbing for restricted DMA pool")
Co-authored-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Signed-off-by: Liang He <windhl@xxxxxxx>
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220702014449.263772-1-windhl@xxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 874f031442dc..75b6cbffa755 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -81,8 +81,11 @@ of_dma_set_restricted_buffer(struct device *dev, struct device_node *np)
* restricted-dma-pool region is allowed.
*/
if (of_device_is_compatible(node, "restricted-dma-pool") &&
- of_device_is_available(node))
+ of_device_is_available(node)) {
+ of_node_put(node);
break;
+ }
+ of_node_put(node);
}
/*
