net: sfc: fix memory leak due to ptp channel

[platform/kernel/linux-starfive.git] / drivers / net / ethernet / sfc / efx_channels.c

diff --git a/drivers/net/ethernet/sfc/efx_channels.c b/drivers/net/ethernet/sfc/efx_channels.c
index 377df8b..40df910 100644 (file)
--- a/drivers/net/ethernet/sfc/efx_channels.c
+++ b/drivers/net/ethernet/sfc/efx_channels.c
@@ -867,7 +867,9 @@ static void efx_set_xdp_channels(struct efx_nic *efx)
 
 int efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries)
 {
-       struct efx_channel *other_channel[EFX_MAX_CHANNELS], *channel;
+       struct efx_channel *other_channel[EFX_MAX_CHANNELS], *channel,
+                          *ptp_channel = efx_ptp_channel(efx);
+       struct efx_ptp_data *ptp_data = efx->ptp_data;
        unsigned int i, next_buffer_table = 0;
        u32 old_rxq_entries, old_txq_entries;
        int rc, rc2;
@@ -938,6 +940,7 @@ int efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries)
 
        efx_set_xdp_channels(efx);
 out:
+       efx->ptp_data = NULL;
        /* Destroy unused channel structures */
        for (i = 0; i < efx->n_channels; i++) {
                channel = other_channel[i];
@@ -948,6 +951,7 @@ out:
                }
        }
 
+       efx->ptp_data = ptp_data;
        rc2 = efx_soft_enable_interrupts(efx);
        if (rc2) {
                rc = rc ? rc : rc2;
@@ -966,6 +970,7 @@ rollback:
        efx->txq_entries = old_txq_entries;
        for (i = 0; i < efx->n_channels; i++)
                swap(efx->channel[i], other_channel[i]);
+       efx_ptp_update_channel(efx, ptp_channel);
        goto out;
 }