[PATCH net-next v2 2/3] net: stmmac: fpe: Add missing return in stmmac_fpe_init()

[muhammad.nazim.amirul.nazle.asmade at altera.com]

From: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade at altera.com>

When FPE is not supported by the driver, stmmac_fpe_init() prints a
warning but falls through into the pmac_enabled initialization, which
should only be reached on supported hardware. Add the missing return
to prevent this.

Signed-off-by: Rohan G Thomas <rohan.g.thomas at altera.com>
Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade at altera.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier at bootlin.com>
---
v2: No changes. Collect Reviewed-by from Maxime Chevallier.

 drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.c
index 2f880c5e35b0..3436e962a238 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_fpe.c
@@ -174,8 +174,10 @@ void stmmac_fpe_init(struct stmmac_priv *priv)
 			  &stmmac_mmsv_ops);
 
 	if ((!priv->fpe_cfg.reg || !priv->hw->mac->fpe_map_preemption_class) &&
-	    priv->dma_cap.fpesel)
+	    priv->dma_cap.fpesel) {
 		dev_info(priv->device, "FPE is not supported by driver.\n");
+		return;
+	}
 
 	/* The preemptive MAC in DWMAC is always enabled, so initialize
 	 * pmac_enabled to true to reflect the hardware state.
-- 
2.43.7