From: Rob Herring <robh@kernel.org>
To: Zijun Hu <zijun_hu@icloud.com>
Cc: Saravana Kannan <saravanak@google.com>,
Leif Lindholm <leif.lindholm@linaro.org>,
Stephen Boyd <stephen.boyd@linaro.org>,
Maxime Ripard <mripard@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Grant Likely <grant.likely@secretlab.ca>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Zijun Hu <quic_zijuhu@quicinc.com>,
stable@vger.kernel.org
Subject: Re: [PATCH 04/10] of: Fix refcount leakage for OF node returned by __of_get_dma_parent()
Date: Mon, 9 Dec 2024 14:32:00 -0600 [thread overview]
Message-ID: <20241209203200.GA925532-robh@kernel.org> (raw)
In-Reply-To: <20241206-of_core_fix-v1-4-dc28ed56bec3@quicinc.com>
On Fri, Dec 06, 2024 at 08:52:30AM +0800, Zijun Hu wrote:
> From: Zijun Hu <quic_zijuhu@quicinc.com>
>
> __of_get_dma_parent() returns OF device node @args.np, but the node's
> refcount is increased twice, by both of_parse_phandle_with_args() and
> of_node_get(), so causes refcount leakage for the node.
>
> Fix by directly returning the node got by of_parse_phandle_with_args().
>
> Fixes: f83a6e5dea6c ("of: address: Add support for the parent DMA bus")
> Cc: stable@vger.kernel.org
> Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
> ---
> drivers/of/address.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks.
Rob
next prev parent reply other threads:[~2024-12-09 20:32 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-06 0:52 [PATCH 00/10] of: fix bugs and improve codes Zijun Hu
2024-12-06 0:52 ` [PATCH 01/10] of: Fix alias name length calculating error in API of_find_node_opts_by_path() Zijun Hu
2024-12-09 13:24 ` Rob Herring
2024-12-09 13:31 ` Zijun Hu
2024-12-06 0:52 ` [PATCH 02/10] of: Correct return value for API of_parse_phandle_with_args_map() Zijun Hu
2024-12-09 13:26 ` Rob Herring
2024-12-06 0:52 ` [PATCH 03/10] of: Correct child specifier used as input of the 2nd nexus node Zijun Hu
2024-12-06 0:52 ` [PATCH 04/10] of: Fix refcount leakage for OF node returned by __of_get_dma_parent() Zijun Hu
2024-12-09 20:32 ` Rob Herring [this message]
2024-12-06 0:52 ` [PATCH 05/10] of: Fix available buffer size calculating error in API of_device_uevent_modalias() Zijun Hu
2024-12-09 20:34 ` Rob Herring
2024-12-10 12:39 ` Zijun Hu
2024-12-10 14:10 ` Rob Herring
2024-12-11 11:44 ` Zijun Hu
2024-12-06 0:52 ` [PATCH 06/10] of/fdt: Dump __be32 array in CPU type order in of_dump_addr() Zijun Hu
2024-12-09 20:37 ` Rob Herring
2024-12-06 0:52 ` [PATCH 07/10] of: Correct comments for of_alias_scan() Zijun Hu
2024-12-09 13:20 ` Rob Herring
2024-12-09 13:41 ` Zijun Hu
2024-12-06 0:52 ` [PATCH 08/10] of: Swap implementation between of_property_present() and of_property_read_bool() Zijun Hu
2024-12-06 0:52 ` [PATCH 09/10] of: property: Implement of_fwnode_property_present() by of_property_present() Zijun Hu
2024-12-09 16:48 ` Rob Herring
2024-12-10 12:44 ` Zijun Hu
2024-12-10 13:37 ` Robin Murphy
2024-12-06 0:52 ` [PATCH 10/10] of: Simplify API of_find_node_with_property() implementation Zijun Hu
2024-12-09 20:38 ` Rob Herring
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