ibmvnic: fix dma_mapping_error call

This patch fixes the dma_mapping_error call to use the correct dma_addr
which is inside the ibmvnic_vpd struct. Moreover, it fixes an uninitialized
warning regarding a local dma_addr variable which is not used anymore.

Fixes: 4e6759be28e4 ("ibmvnic: Feature implementation of VPD for the ibmvnic driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 04aaacbc3d45..1dc4aef37d3a 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -849,7 +849,6 @@ static int ibmvnic_get_vpd(struct ibmvnic_adapter *adapter)
 {
         struct device *dev = &adapter->vdev->dev;
         union ibmvnic_crq crq;
-        dma_addr_t dma_addr;
         int len = 0;
 
         if (adapter->vpd->buff)
@@ -879,7 +878,7 @@ static int ibmvnic_get_vpd(struct ibmvnic_adapter *adapter)
         adapter->vpd->dma_addr =
                 dma_map_single(dev, adapter->vpd->buff, adapter->vpd->len,
                                DMA_FROM_DEVICE);
-        if (dma_mapping_error(dev, dma_addr)) {
+        if (dma_mapping_error(dev, adapter->vpd->dma_addr)) {
                 dev_err(dev, "Could not map VPD buffer\n");
                 kfree(adapter->vpd->buff);
                 return -ENOMEM;