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of: device: Fix missing of_node_put() in of_dma_set_restricted_buffer

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[ 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@gmail.com>
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220702014449.263772-1-windhl@126.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang He 2022-07-02 09:44:49 +08:00 committed by Greg Kroah-Hartman
parent 98b2ddfa94
commit dfca1e2172
1 changed files with 4 additions and 1 deletions
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5
drivers/of/device.c
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@ -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);
}
/*