[PATCH] gianfar: fix compile warning

[Grant Likely <grant.likely@secretlab.ca>]

From: Grant Likely <grant.likely@secretlab.ca>

Eliminate an uninitialized variable warning.  The code is correct, but
a pointer to the automatic variable 'addr' is passed to dma_alloc_coherent.
Since addr has never been initialized, and the compiler doesn't know
what dma_alloc_coherent will do with it, it complains.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---

 drivers/net/gianfar.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index cc288d8..c009ab6 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -696,7 +696,7 @@ int startup_gfar(struct net_device *dev)
 {
 	struct txbd8 *txbdp;
 	struct rxbd8 *rxbdp;
-	dma_addr_t addr;
+	dma_addr_t addr = 0;
 	unsigned long vaddr;
 	int i;
 	struct gfar_private *priv = netdev_priv(dev);