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net: thunderx: Fix the ACPI memory leak

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[ Upstream commit 661e5ebbafd26d9d2e3c749f5cf591e55c7364f5 ]

The ACPI buffer memory (string.pointer) should be freed as the buffer is
not used after returning from bgx_acpi_match_id(), free it to prevent
memory leak.

Fixes: 46b903a01c05 ("net, thunder, bgx: Add support to get MAC address from ACPI.")
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Link: https://lore.kernel.org/r/20221123082237.1220521-1-liaoyu15@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yu Liao 2022-11-23 16:22:36 +08:00 committed by Greg Kroah-Hartman
parent 6f7cb84246
commit 3c2cfa88db
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/cavium/thunder/thunder_bgx.c
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@ -1183,8 +1183,10 @@ static acpi_status bgx_acpi_match_id(acpi_handle handle, u32 lvl,
return AE_OK;
}
if (strncmp(string.pointer, bgx_sel, 4))
if (strncmp(string.pointer, bgx_sel, 4)) {
kfree(string.pointer);
return AE_OK;
}
acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
bgx_acpi_register_phy, NULL, bgx, NULL);