dma_mapping_error() returns 1 if there is an error and 0 if not.
Fixes: 018423e90bee ("net: ethernet: aquantia: Add ring support code")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 817c145520c8..dea9e9bbb8e7 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -298,9 +298,10 @@ int aq_ring_rx_fill(struct aq_ring_s *self)
buff->page, 0,
AQ_CFG_RX_FRAME_MAX, DMA_FROM_DEVICE);
- err = dma_mapping_error(aq_nic_get_dev(self->aq_nic), buff->pa);
- if (err < 0)
+ if (dma_mapping_error(aq_nic_get_dev(self->aq_nic), buff->pa)) {
+ err = -ENOMEM;
goto err_exit;
+ }
buff = NULL;
}
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