diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2018-05-30 13:03:51 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-06-26 08:08:05 +0800 |
| commit | 1249ccd806e04a4029d1f3b37143131bfe4850ec (patch) | |
| tree | 68803d015845c8132d26a94a2a30e0ab134389b2 | |
| parent | 2fe56703ee8463b0922734a1c94a475790de40aa (diff) | |
net/sonic: Use dma_mapping_error()
[ Upstream commit 26de0b76d9ba3200f09c6cb9d9618bda338be5f7 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 612c7a44b26c..23821540ab07 100644 --- a/drivers/net/ethernet/natsemi/sonic.c +++ b/drivers/net/ethernet/natsemi/sonic.c @@ -71,7 +71,7 @@ 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); |