[PATCH net-next] e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait

[YueHaibing]

Fix a static code checker warning:
drivers/net/ethernet/intel/e100.c:1349
 e100_load_ucode_wait() warn: passing zero to 'PTR_ERR'

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/net/ethernet/intel/e100.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e100.c 
b/drivers/net/ethernet/intel/e100.c
index 7c4b554..736115b 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -1345,8 +1345,8 @@ static inline int e100_load_ucode_wait(struct nic *nic)
 
        fw = e100_request_firmware(nic);
        /* If it's NULL, then no ucode is required */
-       if (!fw || IS_ERR(fw))
-               return PTR_ERR(fw);
+       if (IS_ERR_OR_NULL(fw))
+               return PTR_ERR_OR_ZERO(fw);
 
        if ((err = e100_exec_cb(nic, (void *)fw, e100_setup_ucode)))
                netif_err(nic, probe, nic->netdev,
-- 
2.7.0