[PATCH] net: stmmac: Fix missing spin_lock_init in visconti_eth_dwmac_probe()

[PATCH] net: stmmac: Fix missing spin_lock_init in visconti_eth_dwmac_probe()

[Wei Yongjun]

The driver allocates the spinlock but not initialize it.
Use spin_lock_init() on it to initialize it correctly.

Fixes: b38dd98ff8d0 ("net: stmmac: Add Toshiba Visconti SoCs glue driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
index b7a0c57dfbfb..d23be45a64e5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
@@ -218,6 +218,7 @@ static int visconti_eth_dwmac_probe(struct platform_device *pdev)
 		goto remove_config;
 	}
 
+	spin_lock_init(&dwmac->lock);
 	dwmac->reg = stmmac_res.addr;
 	plat_dat->bsp_priv = dwmac;
 	plat_dat->fix_mac_speed = visconti_eth_fix_mac_speed;

Re: [PATCH] net: stmmac: Fix missing spin_lock_init in visconti_eth_dwmac_probe()

[Nobuhiro Iwamatsu]

Hi,

On Tue, Feb 23, 2021 at 10:48:03AM +0000, Wei Yongjun wrote:
> The driver allocates the spinlock but not initialize it.
> Use spin_lock_init() on it to initialize it correctly.
> 
> Fixes: b38dd98ff8d0 ("net: stmmac: Add Toshiba Visconti SoCs glue driver")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>

Thanks for your fix.

Acked-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>

> ---
>  drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
> index b7a0c57dfbfb..d23be45a64e5 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c
> @@ -218,6 +218,7 @@ static int visconti_eth_dwmac_probe(struct platform_device *pdev)
>  		goto remove_config;
>  	}
>  
> +	spin_lock_init(&dwmac->lock);
>  	dwmac->reg = stmmac_res.addr;
>  	plat_dat->bsp_priv = dwmac;
>  	plat_dat->fix_mac_speed = visconti_eth_fix_mac_speed;
> 
>

Best regards,
  Nobuhiro

Re: [PATCH] net: stmmac: Fix missing spin_lock_init in visconti_eth_dwmac_probe()

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Tue, 23 Feb 2021 10:48:03 +0000 you wrote:
> The driver allocates the spinlock but not initialize it.
> Use spin_lock_init() on it to initialize it correctly.
> 
> Fixes: b38dd98ff8d0 ("net: stmmac: Add Toshiba Visconti SoCs glue driver")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> 
> [...]

Here is the summary with links:
  - net: stmmac: Fix missing spin_lock_init in visconti_eth_dwmac_probe()
    https://git.kernel.org/netdev/net/c/17d7fd47aa90

You are awesome, thank you!
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