From f4060c0dbbe9ad7b8c0aeefa142398c8d3468bac Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 28 Dec 2006 21:43:51 -0800 Subject: [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 Signed-off-by: David S. Miller --- arch/sparc64/kernel/isa.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c index ad1c4f55420f..98721a8f8619 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 = kzalloc(sizeof(*isa_dev), GFP_KERNEL); @@ -85,8 +82,8 @@ 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); @@ -99,7 +96,6 @@ 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 = kzalloc(sizeof(*isa_dev), GFP_KERNEL); @@ -137,8 +133,8 @@ 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); -- 2.30.2