mlxsw: spectrum_router: Fix an IS_ERR() vs NULL check
The mlxsw_sp_crif_alloc() function returns NULL on error. It doesn't return error pointers. Fix the check. Fixes: 78126cfd ("mlxsw: spectrum_router: Maintain CRIF for fallback loopback RIF") Signed-off-by:Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by:
Alexander Lobakin <aleksander.lobakin@intel.com> Reviewed-by:
Ido Schimmel <idosch@nvidia.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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