[PATCH 1/2] [POWERPC] Add PPC4xx L2-cache support (440GX & 460EX/GT)

Stephen Rothwell sfr at canb.auug.org.au
Thu Mar 20 10:27:10 EST 2008


Hi Stefan,

Just a few trivial things ...

On Tue, 18 Mar 2008 14:36:29 +0100 Stefan Roese <sr at denx.de> wrote:
>
> +++ b/arch/powerpc/sysdev/ppc4xx_soc.c
>
> +static int __init ppc4xx_l2c_probe(void)
> +{
> +	struct device_node *np = NULL;

This initialisation is unneeded.

> +	/* Map DCRs */
> +	dcrreg = of_get_property(np, "dcr-reg", &len);
> +	if (!dcrreg || (len != 4*sizeof(u32))) {

I prefer spaces around binary operators.

> +		printk(KERN_ERR "%s: Can't get DCR register base !",
> +		       np->full_name);
> +		return -ENODEV;

Since of_find_compatible_node() gets a reference to np, you need an
of_node_put(np) before you return.

> +	if (irq == NO_IRQ) {
> +		printk(KERN_ERR "irq_of_parse_and_map failed\n");
> +		return -ENODEV;

And again.

> +	if (request_irq(irq, l2c_error_handler, IRQF_DISABLED, "L2C", 0) < 0) {
> +		printk(KERN_ERR "Cannot install L2C error handler"
> +		       ", cache is not enabled\n");
> +		return -ENODEV;

And again.

> +	return 0;

And again.

-- 
Cheers,
Stephen Rothwell                    sfr at canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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