[PATCH v10 8/8] usb: chipidea: imx: fix the error that using uninitialized pointer

Peter Chen
2013-02-28T03:24:17Z

On Wed, Feb 27, 2013 at 04:39:48PM +0400, Sergei Shtylyov wrote:
> Hello.
>
> On 27-02-2013 10:33, Peter Chen wrote:
>
> >If the core's probe fails, the platform layer may not get core's
> >private data, if the platform tries to use struct ci13xxx, it will
> >use uninitialized pointer. Besides, if the core's probe fails,
> >the platform layer should know it, and let its probe fail too.
>
> >Signed-off-by: Peter Chen <peter.chen@freescale.com>
> >---
> > drivers/usb/chipidea/ci13xxx_imx.c | 7 +++++++
> > 1 files changed, 7 insertions(+), 0 deletions(-)
>
> >diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
> >index 5499cf8..720ea92 100644
> >--- a/drivers/usb/chipidea/ci13xxx_imx.c
> >+++ b/drivers/usb/chipidea/ci13xxx_imx.c
> >@@ -239,6 +239,13 @@ static int ci13xxx_imx_probe(struct platform_device *pdev)
> > platform_set_drvdata(pdev, data);
> >
> > ci = platform_get_drvdata(plat_ci);
> >+
>
> No need for empty line here...
>
> >+ if (!ci) {
> >+ ret = -ENODEV;
> >+ dev_err(&pdev->dev,
> >+ "some wrong at ci core's initialization\n");
> >+ goto err_clk;
> >+ }
>
> It'd be better to put it here.

Thanks.

>
> > /*
> > * Internal vbus on/off policy
> > * - Always on for host only function
>
> WBR, Sergei
>
>

--

Best Regards,
Peter Chen