[PATCH net] sfc: correctly initialise filter rwsem for farch

Fixes: fc7a6c287ff3 ("sfc: use a semaphore to lock farch filters too")
Suggested-by: Joseph Korty <redacted>
Signed-off-by: Bert Kenward <redacted>
---
 drivers/net/ethernet/sfc/farch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c
index 8edf20967c82..e045a5d6b938 100644
--- a/drivers/net/ethernet/sfc/farch.c
+++ b/drivers/net/ethernet/sfc/farch.c

@@ -2794,6 +2794,7 @@ int efx_farch_filter_table_probe(struct efx_nic *efx)
 	if (!state)
 		return -ENOMEM;
 	efx->filter_state = state;
+	init_rwsem(&state->lock);
 
 	table = &state->table[EFX_FARCH_FILTER_TABLE_RX_IP];
 	table->id = EFX_FARCH_FILTER_TABLE_RX_IP;

-- 
2.13.6

From: Bert Kenward <redacted>
Date: Fri, 29 Jun 2018 16:29:28 +0100

Fixes: fc7a6c287ff3 ("sfc: use a semaphore to lock farch filters too")
Suggested-by: Joseph Korty <redacted>
Signed-off-by: Bert Kenward <redacted>

Applied and queued up for -stable.