Re: [PATCH] iounmap after ioremap in error path: arch/ia64/pci/pci.c

From: Simon Horman <horms_at_verge.net.au>
Date: 2007-11-05 13:13:31
On Sun, Nov 04, 2007 at 12:36:50AM +0100, Roel Kluin wrote:
> Do iounmap when too many IO port spaces were encountered
> 
> Signed-off-by: Roel Kluin <12o3l@tiscali.nl>

This looks correct to me, so long as calling iounmap() actually
reverses ioremap() in this case.

> ---
> diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
> index 488e48a..13a05d7 100644
> --- a/arch/ia64/pci/pci.c
> +++ b/arch/ia64/pci/pci.c
> @@ -154,6 +154,7 @@ new_space (u64 phys_base, int sparse)
>  			return i;
>  
>  	if (num_io_spaces == MAX_IO_SPACES) {
> +		iounmap(mmio_base);
>  		printk(KERN_ERR "PCI: Too many IO port spaces "
>  			"(MAX_IO_SPACES=%lu)\n", MAX_IO_SPACES);
>  		return ~0;
> -
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-- 
Horms
  H: http://www.vergenet.net/~horms/
  W: http://www.valinux.co.jp/en/

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Received on Mon Nov 05 13:13:48 2007

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