From: felipe.balbi@linux•intel.com (Felipe Balbi)
To: linux-arm-kernel@lists•infradead.org
Subject: [RESEND PATCH v2 5/7] usb: xhci: plat: Remove checks for optional clock in error/remove path
Date: Wed, 27 Apr 2016 08:33:52 +0300 [thread overview]
Message-ID: <87h9enpqdb.fsf@intel.com> (raw)
In-Reply-To: <1461675460-2295-6-git-send-email-jszhang@marvell.com>
Jisheng Zhang <jszhang@marvell•com> writes:
> Commit 63589e92c2d9 ("clk: Ignore error and NULL pointers passed to
> clk_{unprepare, disable}()") allows NULL or error pointer to be passed
> unconditionally.
>
> This patch is to simplify probe error and remove code paths.
this seems wrong to me. xhci->clk isn't initialized to NULL, it's either
initialized to a valid struct clk * or some ERR_PTR() value.
Care to explain ?
> Signed-off-by: Jisheng Zhang <jszhang@marvell•com>
> ---
> drivers/usb/host/xhci-plat.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
> index 0e69712..83669d0 100644
> --- a/drivers/usb/host/xhci-plat.c
> +++ b/drivers/usb/host/xhci-plat.c
> @@ -266,8 +266,7 @@ put_usb3_hcd:
> usb_put_hcd(xhci->shared_hcd);
>
> disable_clk:
> - if (!IS_ERR(clk))
> - clk_disable_unprepare(clk);
> + clk_disable_unprepare(clk);
>
> put_hcd:
> usb_put_hcd(hcd);
> @@ -287,8 +286,7 @@ static int xhci_plat_remove(struct platform_device *dev)
> usb_remove_hcd(hcd);
> usb_put_hcd(xhci->shared_hcd);
>
> - if (!IS_ERR(clk))
> - clk_disable_unprepare(clk);
> + clk_disable_unprepare(clk);
> usb_put_hcd(hcd);
>
> return 0;
> --
> 2.8.1
>
> --
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--
balbi
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next prev parent reply other threads:[~2016-04-27 5:33 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-26 12:57 [RESEND PATCH v2 0/7] usb: xhci-plat: support generic PHY and vbus regulator Jisheng Zhang
2016-04-26 12:57 ` [RESEND PATCH v2 1/7] usb: xhci: plat: Fix suspend/resume when the optional clk exists Jisheng Zhang
2016-04-27 5:25 ` Felipe Balbi
2016-04-27 5:46 ` Jisheng Zhang
2016-04-26 12:57 ` [RESEND PATCH v2 2/7] usb: xhci: plat: attach the usb_phy to the correct hcd Jisheng Zhang
2016-04-27 5:29 ` Felipe Balbi
2016-04-27 5:59 ` Jisheng Zhang
2016-04-27 6:19 ` Felipe Balbi
2016-04-26 12:57 ` [RESEND PATCH v2 3/7] usb: xhci: plat: Fix suspend/resume when the optional usb_phy exists Jisheng Zhang
2016-04-27 5:30 ` Felipe Balbi
2016-04-26 12:57 ` [RESEND PATCH v2 4/7] usb: xhci: plat: sort the headers in alphabetic order Jisheng Zhang
2016-04-26 12:57 ` [RESEND PATCH v2 5/7] usb: xhci: plat: Remove checks for optional clock in error/remove path Jisheng Zhang
2016-04-27 5:33 ` Felipe Balbi [this message]
2016-04-27 6:33 ` Jisheng Zhang
2016-04-27 7:19 ` Felipe Balbi
2016-04-26 12:57 ` [RESEND PATCH v2 6/7] usb: xhci: plat: add generic PHY support Jisheng Zhang
2016-04-27 5:35 ` Felipe Balbi
2016-04-27 6:46 ` Jisheng Zhang
2016-04-27 7:21 ` Felipe Balbi
2016-04-27 7:57 ` Heikki Krogerus
2016-04-27 9:34 ` Felipe Balbi
2016-04-26 12:57 ` [RESEND PATCH v2 7/7] usb: xhci: plat: add vbus regulator control Jisheng Zhang
2016-04-27 5:37 ` Felipe Balbi
2016-04-27 9:57 ` Mark Brown
2016-04-27 10:25 ` Jisheng Zhang
2016-04-27 13:24 ` Mark Brown
2016-04-27 10:25 ` Felipe Balbi
2016-04-27 10:35 ` Mark Brown
2016-04-27 10:38 ` Felipe Balbi
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