net: b44: fix error return code in b44_init_one()

[ 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 <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/1605582131-36735-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 6fb620e2520874a05d8112e270a58cb07cdfdbd8..c6becf6cf3f34923439b6048ab702839d73cde0f 100644 (file)
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -2383,7 +2383,8 @@ static int b44_init_one(struct ssb_device *sdev,
                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;