[PATCH] net: pch_gbe: fix err_cast.cocci warnings

[kbuild test robot]

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c:2587:9-16: WARNING: 
ERR_CAST can be used with gpio


 Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

Generated by: scripts/coccinelle/api/err_cast.cocci

CC: Paul Burton <paul.bur...@imgtec.com>
Signed-off-by: Fengguang Wu <fengguang...@intel.com>
---

 pch_gbe_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -2584,7 +2584,7 @@ pch_gbe_get_priv(struct pci_dev *pdev, c
        if (!IS_ERR(gpio))
                pdata->phy_reset_gpio = gpio;
        else if (PTR_ERR(gpio) != -ENOENT)
-               return ERR_PTR(PTR_ERR(gpio));
+               return ERR_CAST(gpio);
 
        return pdata;
 }