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| author | David Miller <davem@davemloft.net> | 2007-01-02 00:06:00 -0800 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2007-01-10 11:05:21 -0800 |
| commit | 5abbb71b50d4a81b1a95e2f6f95c96db1931f42a (patch) | |
| tree | 2777c0f53793499724cd141aa5c60c92374969f5 | |
| parent | bbcbb9a470f9dc18fba57f42febd3036924e5aff (diff) | |
| download | lwn-5abbb71b50d4a81b1a95e2f6f95c96db1931f42a.tar.gz lwn-5abbb71b50d4a81b1a95e2f6f95c96db1931f42a.zip | |
[PATCH] SPARC64: Handle ISA devices with no 'regs' property.
And this points out that the return value from
isa_dev_get_resource() and the 'pregs' arg to
isa_dev_get_irq() are totally unused.
Based upon a patch from Richard Mortimer <richm@oldelvet.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
| -rw-r--r-- | arch/sparc64/kernel/isa.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c index f028e68b23f2..fc7ca6d27ee6 100644 --- a/arch/sparc64/kernel/isa.c +++ b/arch/sparc64/kernel/isa.c @@ -22,14 +22,15 @@ static void __init report_dev(struct sparc_isa_device *isa_dev, int child) printk(" [%s", isa_dev->prom_node->name); } -static struct linux_prom_registers * __init -isa_dev_get_resource(struct sparc_isa_device *isa_dev) +static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev) { struct linux_prom_registers *pregs; unsigned long base, len; int prop_len; pregs = of_get_property(isa_dev->prom_node, "reg", &prop_len); + if (!pregs) + return; /* Only the first one is interesting. */ len = pregs[0].reg_size; @@ -44,12 +45,9 @@ isa_dev_get_resource(struct sparc_isa_device *isa_dev) request_resource(&isa_dev->bus->parent->io_space, &isa_dev->resource); - - return pregs; } -static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev, - struct linux_prom_registers *pregs) +static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev) { struct of_device *op = of_find_device_by_node(isa_dev->prom_node); @@ -69,7 +67,6 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev) printk(" ->"); while (dp) { - struct linux_prom_registers *regs; struct sparc_isa_device *isa_dev; isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL); @@ -87,8 +84,8 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev) isa_dev->bus = parent_isa_dev->bus; isa_dev->prom_node = dp; - regs = isa_dev_get_resource(isa_dev); - isa_dev_get_irq(isa_dev, regs); + isa_dev_get_resource(isa_dev); + isa_dev_get_irq(isa_dev); report_dev(isa_dev, 1); @@ -101,7 +98,6 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br) struct device_node *dp = isa_br->prom_node->child; while (dp) { - struct linux_prom_registers *regs; struct sparc_isa_device *isa_dev; isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL); @@ -141,8 +137,8 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br) isa_dev->bus = isa_br; isa_dev->prom_node = dp; - regs = isa_dev_get_resource(isa_dev); - isa_dev_get_irq(isa_dev, regs); + isa_dev_get_resource(isa_dev); + isa_dev_get_irq(isa_dev); report_dev(isa_dev, 0); |