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ath10k: Fix error handling in ath10k_setup_msa_resources

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[ Upstream commit 9747a78d5f ]

The device_node pointer is returned by of_parse_phandle() with refcount
incremented. We should use of_node_put() on it when done.

This function only calls of_node_put() in the regular path.
And it will cause refcount leak in error path.

Fixes: 727fec790e ("ath10k: Setup the msa resources before qmi init")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220308070238.19295-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-03-08 07:02:38 +00:00 • committed by Justin Hammond
parent 9acf2e7cc4
commit 406ee04387
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ath/ath10k/snoc.c
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@ -1556,11 +1556,11 @@ static int ath10k_setup_msa_resources(struct ath10k *ar, u32 msa_size)
node = of_parse_phandle(dev->of_node, "memory-region", 0);
if (node) {
ret = of_address_to_resource(node, 0, &r);
of_node_put(node);
if (ret) {
dev_err(dev, "failed to resolve msa fixed region\n");
return ret;
}
of_node_put(node);
ar->msa.paddr = r.start;
ar->msa.mem_size = resource_size(&r);