From: Yu Liao liaoyu15@huawei.com
[ 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 --- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index e5fc89813852..3cde9a2a0ab7 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -1447,8 +1447,10 @@ 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);