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freifunkist-firmware/target/linux/mediatek/patches-4.4/0058-net-mediatek-unlock-on...

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From 6c12340c0c307d18b8d6120f64a8275b6d4d3e67 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 15 Mar 2016 10:19:04 +0300
Subject: [PATCH 058/102] net: mediatek: unlock on error in mtk_tx_map()
There was a missing unlock on the error path.
Fixes: 656e705243fd ('net-next: mediatek: add support for MT7623 ethernet')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -661,6 +661,8 @@ err_dma:
itxd = mtk_qdma_phys_to_virt(ring, itxd->txd2);
} while (itxd != txd);
+ spin_unlock_irqrestore(&eth->page_lock, flags);
+
return -ENOMEM;
}