From 3dcbba7d4b5df2af528cbfb5469c9e486ea487ef Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Fri, 27 Jun 2008 16:56:56 -0600
Subject: [PATCH] --- yaml --- r: 102038 b: refs/heads/master c:
 20bfdbba7212d19613b93dcea93f26cb65af91fe h: refs/heads/master v: v3

---
 [refs]                    |  2 +-
 trunk/include/linux/pnp.h | 72 ++++++++++++++++++++++++++++++++-------
 2 files changed, 61 insertions(+), 13 deletions(-)

diff --git a/[refs] b/[refs]
index 43d550214826..80f4d86cd34d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9fdee4e02e3b214cde8e4f3beb6776075a3d08a7
+refs/heads/master: 20bfdbba7212d19613b93dcea93f26cb65af91fe
diff --git a/trunk/include/linux/pnp.h b/trunk/include/linux/pnp.h
index 63b128d512fb..8b607aecd959 100644
--- a/trunk/include/linux/pnp.h
+++ b/trunk/include/linux/pnp.h
@@ -40,19 +40,31 @@ static inline resource_size_t pnp_resource_len(struct resource *res)
 static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
 					     unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_IO, bar)->start;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+	if (pnp_resource_valid(res))
+		return res->start;
+	return 0;
 }
 
 static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
 					   unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_IO, bar)->end;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+	if (pnp_resource_valid(res))
+		return res->end;
+	return 0;
 }
 
 static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
 					   unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_IO, bar)->flags;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+	if (pnp_resource_valid(res))
+		return res->flags;
+	return IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
 }
 
 static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
@@ -63,25 +75,41 @@ static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
 static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
 					   unsigned int bar)
 {
-	return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_IO, bar));
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+	if (pnp_resource_valid(res))
+		return pnp_resource_len(res);
+	return 0;
 }
 
 
 static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
 					    unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_MEM, bar)->start;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+	if (pnp_resource_valid(res))
+		return res->start;
+	return 0;
 }
 
 static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
 					  unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_MEM, bar)->end;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+	if (pnp_resource_valid(res))
+		return res->end;
+	return 0;
 }
 
 static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_MEM, bar)->flags;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+	if (pnp_resource_valid(res))
+		return res->flags;
+	return IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
 }
 
 static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
@@ -92,18 +120,30 @@ static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
 static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
 					  unsigned int bar)
 {
-	return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_MEM, bar));
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+	if (pnp_resource_valid(res))
+		return pnp_resource_len(res);
+	return 0;
 }
 
 
 static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->start;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
+
+	if (pnp_resource_valid(res))
+		return res->start;
+	return -1;
 }
 
 static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->flags;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
+
+	if (pnp_resource_valid(res))
+		return res->flags;
+	return IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
 }
 
 static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
@@ -114,12 +154,20 @@ static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
 
 static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_DMA, bar)->start;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
+
+	if (pnp_resource_valid(res))
+		return res->start;
+	return -1;
 }
 
 static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
 {
-	return pnp_get_resource(dev, IORESOURCE_DMA, bar)->flags;
+	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
+
+	if (pnp_resource_valid(res))
+		return res->flags;
+	return IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
 }
 
 static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)