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net: stmmac: fix a possible endless loop

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It forgot to reduce the value of the variable retry in a while loop
in the ethqos_configure() function. It may cause an endless loop and
without timeout.

Fixes: a7c30e62d4 ("net: stmmac: Add driver for Qualcomm ethqos")
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dejin Zheng 2020-02-06 23:29:17 +08:00 committed by David S. Miller
parent 963485d436
commit 7d10f0774f
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
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@ -413,6 +413,7 @@ static int ethqos_configure(struct qcom_ethqos *ethqos)
dll_lock = rgmii_readl(ethqos, SDC4_STATUS);
if (dll_lock & SDC4_STATUS_DLL_LOCK)
break;
retry--;
} while (retry > 0);
if (!retry)
dev_err(&ethqos->pdev->dev,