[PATCH] dma/fsldma : Unmap region obtained by of_iomap

[Leo Li]

> -----Original Message-----
> From: Arvind Yadav [mailto:arvind.yadav.cs at gmail.com]
> Sent: Wednesday, September 28, 2016 5:45 AM
> To: leoli at freescale.com; zw at zh-kernel.org; vinod.koul at intel.com
> Cc: dan.j.williams at intel.com; linuxppc-dev at lists.ozlabs.org;
> dmaengine at vger.kernel.org; linux-kernel at vger.kernel.org
> Subject: [PATCH] dma/fsldma : Unmap region obtained by of_iomap
> 
> Free memory mapping, if probe is not successful.
> 
> Signed-off-by: Arvind Yadav <arvind.yadav.cs at gmail.com>

Acked-by: Li Yang <leoyang.li at nxp.com>

> ---
>  drivers/dma/fsldma.c |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index
> 911b717..7ba8944 100644
> --- a/drivers/dma/fsldma.c
> +++ b/drivers/dma/fsldma.c
> @@ -1351,7 +1351,7 @@ static int fsldma_of_probe(struct platform_device
> *op)
>  	if (!fdev->regs) {
>  		dev_err(&op->dev, "unable to ioremap registers\n");
>  		err = -ENOMEM;
> -		goto out_free_fdev;
> +		goto out_free;
>  	}
> 
>  	/* map the channel IRQ if it exists, but don't hookup the handler yet */
> @@ -1416,6 +1416,8 @@ static int fsldma_of_probe(struct platform_device
> *op)
> 
>  out_free_fdev:
>  	irq_dispose_mapping(fdev->irq);
> +	iounmap(fdev->regs);
> +out_free:
>  	kfree(fdev);
>  out_return:
>  	return err;
> --
> 1.7.9.5