[PATCH 4.9 06/47] net: b44: fix error return code in b44_init_one()

[Greg Kroah-Hartman]

From: Zhang Changzhong <zhangchangzh...@huawei.com>

[ Upstream commit 7b027c249da54f492699c43e26cba486cfd48035 ]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 39a6f4bce6b4 ("b44: replace the ssb_dma API with the generic DMA API")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzh...@huawei.com>
Reviewed-by: Michael Chan <michael.c...@broadcom.com>
Link: 
https://lore.kernel.org/r/1605582131-36735-1-git-send-email-zhangchangzh...@huawei.com
Signed-off-by: Jakub Kicinski <k...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/b44.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -2390,7 +2390,8 @@ static int b44_init_one(struct ssb_devic
                goto err_out_free_dev;
        }
 
-       if (dma_set_mask_and_coherent(sdev->dma_dev, DMA_BIT_MASK(30))) {
+       err = dma_set_mask_and_coherent(sdev->dma_dev, DMA_BIT_MASK(30));
+       if (err) {
                dev_err(sdev->dev,
                        "Required 30BIT DMA mask unsupported by the system\n");
                goto err_out_powerdown;