[PATCH 4.19 577/639] net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe()

From: Greg Kroah-Hartman
Date: Fri Jan 24 2020 - 06:33:50 EST


From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit 25a584955f020d6ec499c513923fb220f3112d2b ]

The "priv->phy_interface" variable is an enum and in this context GCC
will treat it as unsigned so the error handling will never be
triggered.

Fixes: 80105befdb4b ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/broadcom/bcmsysport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 0bdbc72605e1f..49aa3b5ea57cc 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -2470,7 +2470,7 @@ static int bcm_sysport_probe(struct platform_device *pdev)

priv->phy_interface = of_get_phy_mode(dn);
/* Default to GMII interface mode */
- if (priv->phy_interface < 0)
+ if ((int)priv->phy_interface < 0)
priv->phy_interface = PHY_INTERFACE_MODE_GMII;

/* In the case of a fixed PHY, the DT node associated
--
2.20.1