diff --git a/drivers/net/ethernet/sfc/filter.c b/drivers/net/ethernet/sfc/filter.c
index fea7f7300675c9601c3ab2bf84801f7e909dd093..c3fd61f0a95c5d0680a1a286f48000d82021b46b 100644
--- a/drivers/net/ethernet/sfc/filter.c
+++ b/drivers/net/ethernet/sfc/filter.c
@@ -662,7 +662,7 @@ s32 efx_filter_insert_filter(struct efx_nic *efx, struct efx_filter_spec *spec,
 	struct efx_filter_table *table = efx_filter_spec_table(state, spec);
 	struct efx_filter_spec *saved_spec;
 	efx_oword_t filter;
-	unsigned int filter_idx, depth;
+	unsigned int filter_idx, depth = 0;
 	u32 key;
 	int rc;