On Wed, Aug 14, 2013 at 2:41 PM, Julia Lawall <Julia.Lawall@xxxxxxx> wrote: > From: Julia Lawall <Julia.Lawall@xxxxxxx> > > Remove unneeded error handling on the result of a call to > platform_get_resource when the value is passed to devm_ioremap_resource. > > Move the call to platform_get_resource adjacent to the call to > devm_ioremap_resource to make the connection between them more clear. > > A simplified version of the semantic patch that makes this change is as > follows: (http://coccinelle.lip6.fr/) > > // <smpl> > @@ > expression pdev,res,n,e,e1; > expression ret != 0; > identifier l; > @@ > > - res = platform_get_resource(pdev, IORESOURCE_MEM, n); > ... when != res > - if (res == NULL) { ... \(goto l;\|return ret;\) } > ... when != res > + res = platform_get_resource(pdev, IORESOURCE_MEM, n); > e = devm_ioremap_resource(e1, res); > // </smpl> > > Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> > > --- > drivers/pwm/pwm-spear.c | 7 +------ For SPEAr: Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx> > diff --git a/drivers/pwm/pwm-spear.c b/drivers/pwm/pwm-spear.c > index a54d214..8ad26b8 100644 > --- a/drivers/pwm/pwm-spear.c > +++ b/drivers/pwm/pwm-spear.c > @@ -178,18 +178,13 @@ static int spear_pwm_probe(struct platform_device *pdev) > int ret; > u32 val; > > - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); > - if (!r) { > - dev_err(&pdev->dev, "no memory resources defined\n"); > - return -ENODEV; > - } > - > pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL); > if (!pc) { > dev_err(&pdev->dev, "failed to allocate memory\n"); > return -ENOMEM; > } > > + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); > pc->mmio_base = devm_ioremap_resource(&pdev->dev, r); > if (IS_ERR(pc->mmio_base)) > return PTR_ERR(pc->mmio_base); > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
