[PATCH v1 net-next] nfp: Convert to use ERR_CAST()

[Shen Lichuan]

Use ERR_CAST() as it is designed for casting an error pointer to 
another type.

Signed-off-by: Shen Lichuan <shenlichuan@xxxxxxxx>
---
 drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
index 7136bc48530b..df0234a338a8 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
@@ -278,7 +278,7 @@ struct nfp_nsp *nfp_nsp_open(struct nfp_cpp *cpp)
 
 	res = nfp_resource_acquire(cpp, NFP_RESOURCE_NSP);
 	if (IS_ERR(res))
-		return (void *)res;
+		return ERR_CAST(res);
 
 	state = kzalloc(sizeof(*state), GFP_KERNEL);
 	if (!state) {
-- 
2.17.1