[PATCH 3/6] net: stmmac: fix missing unlock on error in stmmac_suspend()
From: Meng Li <hidden>
Date: 2021-11-19 02:56:07
Also in:
lkml, stable
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds
From: Yang Yingliang <redacted>
commit 30f347ae7cc1178c431f968a89d4b4a375bc0d39 upstream
Add the missing unlock before return from stmmac_suspend()
in the error handling case.
Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver")
Reported-by: Hulk Robot <redacted>
Signed-off-by: Yang Yingliang <redacted>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Meng Li <redacted>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 498962c4b59e..51626edc6a4c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c@@ -5275,8 +5275,10 @@ int stmmac_suspend(struct device *dev) /* Disable clock in case of PWM is off */ clk_disable_unprepare(priv->plat->clk_ptp_ref); ret = pm_runtime_force_suspend(dev); - if (ret) + if (ret) { + mutex_unlock(&priv->lock); return ret; + } } mutex_unlock(&priv->lock);
--
2.17.1