Messages in this thread Patch in this message | | | From | Antoine Tenart <> | Subject | [PATCH net-next 1/6] net: mvpp2: only free the TSO header buffers when it was allocated | Date | Thu, 7 Dec 2017 09:48:58 +0100 |
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This patch adds a check to only free the TSO header buffer when its allocation previously succeeded.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> --- drivers/net/ethernet/marvell/mvpp2.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c index fed2b2f909fc..d67f40ee63b3 100644 --- a/drivers/net/ethernet/marvell/mvpp2.c +++ b/drivers/net/ethernet/marvell/mvpp2.c @@ -5802,6 +5802,7 @@ static int mvpp2_txq_init(struct mvpp2_port *port, txq_pcpu->reserved_num = 0; txq_pcpu->txq_put_index = 0; txq_pcpu->txq_get_index = 0; + txq_pcpu->tso_headers = NULL; txq_pcpu->stop_threshold = txq->size - MVPP2_MAX_SKB_DESCS; txq_pcpu->wake_threshold = txq_pcpu->stop_threshold / 2; @@ -5829,10 +5830,13 @@ static void mvpp2_txq_deinit(struct mvpp2_port *port, txq_pcpu = per_cpu_ptr(txq->pcpu, cpu); kfree(txq_pcpu->buffs); - dma_free_coherent(port->dev->dev.parent, - txq_pcpu->size * TSO_HEADER_SIZE, - txq_pcpu->tso_headers, - txq_pcpu->tso_headers_dma); + if (txq_pcpu->tso_headers) + dma_free_coherent(port->dev->dev.parent, + txq_pcpu->size * TSO_HEADER_SIZE, + txq_pcpu->tso_headers, + txq_pcpu->tso_headers_dma); + + txq_pcpu->tso_headers = NULL; } if (txq->descs) -- 2.14.3
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