Re: [PATCH 01/10] drivers/video/mb862xx/mb862xxfbdrv.c: fix error return code

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Applied all 10 patches of this series.


Thanks,

Florian Tobias Schandinat


On 09/18/2012 12:07 PM, Peter Senna Tschudin wrote:
> From: Peter Senna Tschudin <peter.senna@xxxxxxxxx>
> 
> Convert a nonnegative error return code to a negative one, as returned
> elsewhere in the function.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> (
> if@p1 (\(ret < 0\|ret != 0\))
>  { ... return ret; }
> |
> ret@p1 = 0
> )
> ... when != ret = e1
>     when != &ret
> *if(...)
> {
>   ... when != ret = e2
>       when forall
>  return ret;
> }
> // </smpl>
> 
> Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx>
> ---
>  drivers/video/mb862xx/mb862xxfbdrv.c | 10 +++++++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/video/mb862xx/mb862xxfbdrv.c b/drivers/video/mb862xx/mb862xxfbdrv.c
> index 57d940b..d68e332 100644
> --- a/drivers/video/mb862xx/mb862xxfbdrv.c
> +++ b/drivers/video/mb862xx/mb862xxfbdrv.c
> @@ -1052,12 +1052,14 @@ static int __devinit mb862xx_pci_probe(struct pci_dev *pdev,
>  		break;
>  	default:
>  		/* should never occur */
> +		ret = -EIO;
>  		goto rel_reg;
>  	}
>  
>  	par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram);
>  	if (par->fb_base == NULL) {
>  		dev_err(dev, "Cannot map framebuffer\n");
> +		ret = -EIO;
>  		goto rel_reg;
>  	}
>  
> @@ -1073,11 +1075,13 @@ static int __devinit mb862xx_pci_probe(struct pci_dev *pdev,
>  	dev_dbg(dev, "mmio phys 0x%llx 0x%lx\n",
>  		(unsigned long long)par->mmio_base_phys, (ulong)par->mmio_len);
>  
> -	if (mb862xx_pci_gdc_init(par))
> +	ret = mb862xx_pci_gdc_init(par);
> +	if (ret)
>  		goto io_unmap;
>  
> -	if (request_irq(par->irq, mb862xx_intr, IRQF_SHARED,
> -			DRV_NAME, (void *)par)) {
> +	ret = request_irq(par->irq, mb862xx_intr, IRQF_SHARED,
> +			  DRV_NAME, (void *)par);
> +	if (ret) {
>  		dev_err(dev, "Cannot request irq\n");
>  		goto io_unmap;
>  	}

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