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of: Fix refcount leakage for OF node returned by __of_get_dma_parent()
authorZijun Hu <quic_zijuhu@quicinc.com>
Fri, 6 Dec 2024 00:52:30 +0000 (08:52 +0800)
committerRob Herring (Arm) <robh@kernel.org>
Tue, 10 Dec 2024 16:52:45 +0000 (10:52 -0600)
commit5d009e024056ded20c5bb1583146b833b23bbd5a
treefc4fcfd8981db2caf900f59fe5c29e52bfaa1eed
parentd7dfa7fde63dde4d2ec0083133efe2c6686c03ff
of: Fix refcount leakage for OF node returned by __of_get_dma_parent()

__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>
Link: https://lore.kernel.org/r/20241206-of_core_fix-v1-4-dc28ed56bec3@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
drivers/of/address.c