nfp: cast sizeof() to int when comparing with error code

[ Upstream commit 2d2595719a97c876f35b1e60e5768e58753b268c ]

sizeof() will return unsigned value so in the error check
negative error code will be always larger than sizeof().

Fixes: a0d8e02c35ff ("nfp: add support for reading nffw info")

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.c
index cd34097b79f1be9d313d8f28b9701bb5bd6a3100..37a6d7822a3860647c416efeff47c7a7837a3a85 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nffw.c
@@ -232,7 +232,7 @@ struct nfp_nffw_info *nfp_nffw_info_open(struct nfp_cpp *cpp)
        err = nfp_cpp_read(cpp, nfp_resource_cpp_id(state->res),
                           nfp_resource_address(state->res),
                           fwinf, sizeof(*fwinf));
-       if (err < sizeof(*fwinf))
+       if (err < (int)sizeof(*fwinf))
                goto err_release;
 
        if (!nffw_res_flg_init_get(fwinf))