net_dma: call dmaengine_get only if NET_DMA enabled

Based upon a patch from Atsushi Nemoto <anemo@mba.ocn.ne.jp>

--------------------
The commit 649274d993212e7c23c0cb734572c2311c200872 ("net_dma:
acquire/release dma channels on ifup/ifdown") added unconditional call
of dmaengine_get() to net_dma.  The API should be called only if
NET_DMA was enabled.
--------------------

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 5379b0c1190a..a17e00662363 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1090,7 +1090,7 @@ int dev_open(struct net_device *dev)
                 /*
                  *      Enable NET_DMA
                  */
-                dmaengine_get();
+                net_dmaengine_get();
 
                 /*
                  *      Initialize multicasting status
@@ -1172,7 +1172,7 @@ int dev_close(struct net_device *dev)
         /*
          *      Shutdown NET_DMA
          */
-        dmaengine_put();
+        net_dmaengine_put();
 
         return 0;
 }