3.16.70-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Kangjie Lu <[email protected]> commit 035a14e71f27eefa50087963b94cbdb3580d08bf upstream. of_get_phy_mode may fail and return a negative error code; the fix checks the return value of of_get_phy_mode and returns NULL of it fails. Fixes: b356e978e92f ("sh_eth: add device tree support") Signed-off-by: Kangjie Lu <[email protected]> Reviewed-by: Sergei Shtylyov <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]> Tested-by: Geert Uytterhoeven <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- drivers/net/ethernet/renesas/sh_eth.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -2712,12 +2712,16 @@ static struct sh_eth_plat_data *sh_eth_p struct device_node *np = dev->of_node; struct sh_eth_plat_data *pdata; const char *mac_addr; + int ret; pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return NULL; - pdata->phy_interface = of_get_phy_mode(np); + ret = of_get_phy_mode(np); + if (ret < 0) + return NULL; + pdata->phy_interface = ret; mac_addr = of_get_mac_address(np); if (mac_addr)
