diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2018-05-30 05:03:51 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-05-31 20:17:33 +0200 |
| commit | 26de0b76d9ba3200f09c6cb9d9618bda338be5f7 (patch) | |
| tree | 6adbba9287e5e56cfef7233d72b5c64152859eb6 /drivers/net/ethernet/natsemi/sonic.c | |
| parent | vhost_net: flush batched heads before trying to busy polling (diff) | |
| download | linux-26de0b76d9ba3200f09c6cb9d9618bda338be5f7.tar.xz linux-26de0b76d9ba3200f09c6cb9d9618bda338be5f7.zip | |
net/sonic: Use dma_mapping_error()
With CONFIG_DMA_API_DEBUG=y, calling sonic_open() produces the
message, "DMA-API: device driver failed to check map error".
Add the missing dma_mapping_error() call.
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/natsemi/sonic.c')
| -rw-r--r-- | drivers/net/ethernet/natsemi/sonic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/natsemi/sonic.c b/drivers/net/ethernet/natsemi/sonic.c index 7ed08486ae23..c805dcbebd02 100644 --- a/drivers/net/ethernet/natsemi/sonic.c +++ b/drivers/net/ethernet/natsemi/sonic.c @@ -84,7 +84,7 @@ static int sonic_open(struct net_device *dev) for (i = 0; i < SONIC_NUM_RRS; i++) { dma_addr_t laddr = dma_map_single(lp->device, skb_put(lp->rx_skb[i], SONIC_RBSIZE), SONIC_RBSIZE, DMA_FROM_DEVICE); - if (!laddr) { + if (dma_mapping_error(lp->device, laddr)) { while(i > 0) { /* free any that were mapped successfully */ i--; dma_unmap_single(lp->device, lp->rx_laddr[i], SONIC_RBSIZE, DMA_FROM_DEVICE); |