* [PATCH net-next] net: ethernet: fec: remove redundant null check before clk_disable_unprepare()
@ 2020-09-07 12:49 Zhang Changzhong
2020-09-07 13:14 ` Andy Duan
0 siblings, 1 reply; 3+ messages in thread
From: Zhang Changzhong @ 2020-09-07 12:49 UTC (permalink / raw)
To: fugang.duan, davem, kuba; +Cc: netdev, linux-kernel
Because clk_prepare_enable() and clk_disable_unprepare() already checked
NULL clock parameter, so the additional checks are unnecessary, just
remove them.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
---
drivers/net/ethernet/freescale/fec_main.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index fb37816..c043afb 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1960,8 +1960,7 @@ static int fec_enet_clk_enable(struct net_device *ndev, bool enable)
mutex_unlock(&fep->ptp_clk_mutex);
}
failed_clk_ptp:
- if (fep->clk_enet_out)
- clk_disable_unprepare(fep->clk_enet_out);
+ clk_disable_unprepare(fep->clk_enet_out);
return ret;
}
--
2.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* RE: [PATCH net-next] net: ethernet: fec: remove redundant null check before clk_disable_unprepare()
2020-09-07 12:49 [PATCH net-next] net: ethernet: fec: remove redundant null check before clk_disable_unprepare() Zhang Changzhong
@ 2020-09-07 13:14 ` Andy Duan
2020-09-07 20:39 ` Jakub Kicinski
0 siblings, 1 reply; 3+ messages in thread
From: Andy Duan @ 2020-09-07 13:14 UTC (permalink / raw)
To: Zhang Changzhong, davem, kuba; +Cc: netdev, linux-kernel
From: Zhang Changzhong <zhangchangzhong@huawei.com> Sent: Monday, September 7, 2020 8:50 PM
> Because clk_prepare_enable() and clk_disable_unprepare() already checked
> NULL clock parameter, so the additional checks are unnecessary, just remove
> them.
>
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
> ---
> drivers/net/ethernet/freescale/fec_main.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/freescale/fec_main.c
> b/drivers/net/ethernet/freescale/fec_main.c
> index fb37816..c043afb 100644
> --- a/drivers/net/ethernet/freescale/fec_main.c
> +++ b/drivers/net/ethernet/freescale/fec_main.c
> @@ -1960,8 +1960,7 @@ static int fec_enet_clk_enable(struct net_device
> *ndev, bool enable)
> mutex_unlock(&fep->ptp_clk_mutex);
> }
> failed_clk_ptp:
> - if (fep->clk_enet_out)
> - clk_disable_unprepare(fep->clk_enet_out);
> + clk_disable_unprepare(fep->clk_enet_out);
>
> return ret;
> }
> --
> 2.9.5
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH net-next] net: ethernet: fec: remove redundant null check before clk_disable_unprepare()
2020-09-07 13:14 ` Andy Duan
@ 2020-09-07 20:39 ` Jakub Kicinski
0 siblings, 0 replies; 3+ messages in thread
From: Jakub Kicinski @ 2020-09-07 20:39 UTC (permalink / raw)
To: Andy Duan; +Cc: Zhang Changzhong, davem, netdev, linux-kernel
On Mon, 7 Sep 2020 13:14:50 +0000 Andy Duan wrote:
> From: Zhang Changzhong <zhangchangzhong@huawei.com> Sent: Monday, September 7, 2020 8:50 PM
> > Because clk_prepare_enable() and clk_disable_unprepare() already checked
> > NULL clock parameter, so the additional checks are unnecessary, just remove
> > them.
> >
> > Reported-by: Hulk Robot <hulkci@huawei.com>
> > Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
>
> Acked-by: Fugang Duan <fugang.duan@nxp.com>
Applied, thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-09-07 20:39 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-09-07 12:49 [PATCH net-next] net: ethernet: fec: remove redundant null check before clk_disable_unprepare() Zhang Changzhong
2020-09-07 13:14 ` Andy Duan
2020-09-07 20:39 ` Jakub Kicinski
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