[patch 44/55] PNP: add pnp_get_pnp_resource()

[Bjorn Helgaas]

In some places, we need to get the struct pnp_resource, not just
the struct resource, because ISAPNP needs to store the register
index in the pnp_resource.

I don't like pnp_get_pnp_resource() and hope that it is temporary,
but we need it for a little while.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>

---
 drivers/pnp/base.h     |    3 +++
 drivers/pnp/resource.c |   24 ++++++++++++++++++------
 2 files changed, 21 insertions(+), 6 deletions(-)

Index: work10/drivers/pnp/base.h
===================================================================
--- work10.orig/drivers/pnp/base.h	2008-04-28 16:09:43.000000000 -0600
+++ work10/drivers/pnp/base.h	2008-04-28 16:09:43.000000000 -0600
@@ -21,6 +21,9 @@
 
 void pnp_init_resource(struct resource *res);
 
+struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
+					  unsigned int type, unsigned int num);
+
 #define PNP_MAX_PORT		40
 #define PNP_MAX_MEM		24
 #define PNP_MAX_IRQ		 2
Index: work10/drivers/pnp/resource.c
===================================================================
--- work10.orig/drivers/pnp/resource.c	2008-04-28 16:09:43.000000000 -0600
+++ work10/drivers/pnp/resource.c	2008-04-28 16:09:43.000000000 -0600
@@ -499,8 +499,8 @@
 #endif
 }
 
-struct resource *pnp_get_resource(struct pnp_dev *dev,
-				  unsigned int type, unsigned int num)
+struct pnp_resource *pnp_get_pnp_resource(struct pnp_dev *dev,
+					  unsigned int type, unsigned int num)
 {
 	struct pnp_resource_table *res = dev->res;
 
@@ -508,22 +508,34 @@
 	case IORESOURCE_IO:
 		if (num >= PNP_MAX_PORT)
 			return NULL;
-		return &res->port[num].res;
+		return &res->port[num];
 	case IORESOURCE_MEM:
 		if (num >= PNP_MAX_MEM)
 			return NULL;
-		return &res->mem[num].res;
+		return &res->mem[num];
 	case IORESOURCE_IRQ:
 		if (num >= PNP_MAX_IRQ)
 			return NULL;
-		return &res->irq[num].res;
+		return &res->irq[num];
 	case IORESOURCE_DMA:
 		if (num >= PNP_MAX_DMA)
 			return NULL;
-		return &res->dma[num].res;
+		return &res->dma[num];
 	}
 	return NULL;
 }
+
+struct resource *pnp_get_resource(struct pnp_dev *dev,
+				  unsigned int type, unsigned int num)
+{
+	struct pnp_resource *pnp_res;
+
+	pnp_res = pnp_get_pnp_resource(dev, type, num);
+	if (pnp_res)
+		return &pnp_res->res;
+
+	return NULL;
+}
 EXPORT_SYMBOL(pnp_get_resource);
 
 /* format is: pnp_reserve_irq=irq1[,irq2] .... */

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