Currently an invalid port throws a WARN_ON warning however invalid uninitialized values in reg and cpu_port_index are being used later on. Fix this by returning -EINVAL for an invalid port value. Addresses clang-scan warnings: drivers/net/dsa/qca8k.c:1981:3: warning: 2nd function call argument is an uninitialized value [core.CallAndMessage] drivers/net/dsa/qca8k.c:1999:9: warning: 2nd function call argument is an uninitialized value [core.CallAndMessage] Fixes: 7544b3ff745b ("net: dsa: qca8k: move pcs configuration") Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx> --- drivers/net/dsa/qca8k.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index 04fa21e37dfa..2ed45f69b8e4 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -1937,6 +1937,7 @@ static int qca8k_pcs_config(struct phylink_pcs *pcs, unsigned int mode, default: WARN_ON(1); + return -EINVAL; } /* Enable/disable SerDes auto-negotiation as necessary */ -- 2.34.1