sfc: Allow efx_nic_type::dimension_resources to fail

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

4 files changed, 12 insertions, 6 deletions

diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 84c47d3f2b53..59aa73ccefed 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -1513,9 +1513,11 @@ static int efx_probe_nic(struct efx_nic *efx)
          * in MSI-X interrupts. */
         rc = efx_probe_interrupts(efx);
         if (rc)
-                goto fail;
+                goto fail1;
 
-        efx->type->dimension_resources(efx);
+        rc = efx->type->dimension_resources(efx);
+        if (rc)
+                goto fail2;
 
         if (efx->n_channels > 1)
                 get_random_bytes(&efx->rx_hash_key, sizeof(efx->rx_hash_key));
@@ -1533,7 +1535,9 @@ static int efx_probe_nic(struct efx_nic *efx)
 
         return 0;
 
-fail:
+fail2:
+        efx_remove_interrupts(efx);
+fail1:
         efx->type->remove(efx);
         return rc;
 }
diff --git a/drivers/net/ethernet/sfc/falcon.c b/drivers/net/ethernet/sfc/falcon.c
index ec77611a52e4..a7b30ddbd4e0 100644
--- a/drivers/net/ethernet/sfc/falcon.c
+++ b/drivers/net/ethernet/sfc/falcon.c
@@ -2174,10 +2174,11 @@ out:
         return rc;
 }
 
-static void falcon_dimension_resources(struct efx_nic *efx)
+static int falcon_dimension_resources(struct efx_nic *efx)
 {
         efx->rx_dc_base = 0x20000;
         efx->tx_dc_base = 0x26000;
+        return 0;
 }
 
 /* Probe all SPI devices on the NIC */
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 54900f3c83b1..89974f739bb6 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -1036,7 +1036,7 @@ struct efx_nic_type {
         int (*probe)(struct efx_nic *efx);
         void (*remove)(struct efx_nic *efx);
         int (*init)(struct efx_nic *efx);
-        void (*dimension_resources)(struct efx_nic *efx);
+        int (*dimension_resources)(struct efx_nic *efx);
         void (*fini)(struct efx_nic *efx);
         void (*monitor)(struct efx_nic *efx);
         enum reset_type (*map_reset_reason)(enum reset_type reason);
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c
index 89180d475367..1500405b3a55 100644
--- a/drivers/net/ethernet/sfc/siena.c
+++ b/drivers/net/ethernet/sfc/siena.c
@@ -177,13 +177,14 @@ static int siena_probe_nvconfig(struct efx_nic *efx)
         return rc;
 }
 
-static void siena_dimension_resources(struct efx_nic *efx)
+static int siena_dimension_resources(struct efx_nic *efx)
 {
         /* Each port has a small block of internal SRAM dedicated to
          * the buffer table and descriptor caches.  In theory we can
          * map both blocks to one port, but we don't.
          */
         efx_farch_dimension_resources(efx, FR_CZ_BUF_FULL_TBL_ROWS / 2);
+        return 0;
 }
 
 static unsigned int siena_mem_map_size(struct efx_nic *efx)