netdev - [PATCH v2] ag71xx: fix error return code in ag71xx

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Message-ID: <20190719012157.100396-1-weiyongjun1@huawei.com>
Date:   Fri, 19 Jul 2019 01:21:57 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Jay Cliburn <jcliburn@...il.com>,
        Chris Snook <chris.snook@...il.com>,
        Oleksij Rempel <o.rempel@...gutronix.de>
CC:     Wei Yongjun <weiyongjun1@...wei.com>, <netdev@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: [PATCH v2] ag71xx: fix error return code in ag71xx_probe()

Fix to return error code -ENOMEM from the dmam_alloc_coherent() error
handling case instead of 0, as done elsewhere in this function.

Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Reviewed-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
v1 -> v2: fix subsystem prefix
---
 drivers/net/ethernet/atheros/ag71xx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index 72a57c6cd254..446d62e93439 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1724,8 +1724,10 @@ static int ag71xx_probe(struct platform_device *pdev)
 	ag->stop_desc = dmam_alloc_coherent(&pdev->dev,
 					    sizeof(struct ag71xx_desc),
 					    &ag->stop_desc_dma, GFP_KERNEL);
-	if (!ag->stop_desc)
+	if (!ag->stop_desc) {
+		err = -ENOMEM;
 		goto err_free;
+	}
 
 	ag->stop_desc->data = 0;
 	ag->stop_desc->ctrl = 0;