From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Date: Tue, 28 Nov 2023 08:04:38 +0000 (+0200)
Subject: net: ravb: Stop DMA in case of failures on ravb_open()
X-Git-Tag: v6.6.7~272
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=736651c8f874705d8a1997a718c3f369934c393b;p=platform%2Fkernel%2Flinux-starfive.git

net: ravb: Stop DMA in case of failures on ravb_open()

[ Upstream commit eac16a733427ba0de2449ffc7bd3da32ddb65cb7 ]

In case ravb_phy_start() returns with error the settings applied in
ravb_dmac_init() are not reverted (e.g. config mode). For this call
ravb_stop_dma() on failure path of ravb_open().

Fixes: a0d2f20650e8 ("Renesas Ethernet AVB PTP clock driver")
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 1b35cc2..0b8af7b 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1825,6 +1825,7 @@ out_ptp_stop:
 	/* Stop PTP Clock driver */
 	if (info->gptp)
 		ravb_ptp_stop(ndev);
+	ravb_stop_dma(ndev);
 out_free_irq_mgmta:
 	if (!info->multi_irqs)
 		goto out_free_irq;