[net-next 08/13] fsl/fman: check pcsphy pointer before use

From: Madalin Bucur
Date: Tue Oct 04 2016 - 03:49:25 EST


Signed-off-by: Madalin Bucur <madalin.bucur@xxxxxxx>
---
drivers/net/ethernet/freescale/fman/fman_memac.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index 96dfe7e..53ef51e 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -507,6 +507,9 @@ static void setup_sgmii_internal_phy(struct fman_mac *memac,
{
u16 tmp_reg16;

+ if (WARN_ON(!memac->pcsphy))
+ return;
+
/* SGMII mode */
tmp_reg16 = IF_MODE_SGMII_EN;
if (!fixed_link)
--
2.1.0