net: bgmac: remove set but not used variable 'err'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/broadcom/bgmac.c: In function 'bgmac_dma_alloc':
drivers/net/ethernet/broadcom/bgmac.c:619:6: warning:
 variable 'err' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 4c94d92..cabc8e4 100644 (file)
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -616,7 +616,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
        static const u16 ring_base[] = { BGMAC_DMA_BASE0, BGMAC_DMA_BASE1,
                                         BGMAC_DMA_BASE2, BGMAC_DMA_BASE3, };
        int size; /* ring size: different for Tx and Rx */
-       int err;
        int i;
 
        BUILD_BUG_ON(BGMAC_MAX_TX_RINGS > ARRAY_SIZE(ring_base));
@@ -666,7 +665,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
                if (!ring->cpu_base) {
                        dev_err(bgmac->dev, "Allocation of RX ring 0x%X failed\n",
                                ring->mmio_base);
-                       err = -ENOMEM;
                        goto err_dma_free;
                }