X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2Fkernel%2Fpci-dma.c;h=41af692c1584908b6864356b757294b64b787de2;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=4de2e03c7b4517a8497e177a851db42b82d43d12;hpb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;p=linux-2.6.git

diff --git a/arch/i386/kernel/pci-dma.c b/arch/i386/kernel/pci-dma.c
index 4de2e03c7..41af692c1 100644
--- a/arch/i386/kernel/pci-dma.c
+++ b/arch/i386/kernel/pci-dma.c
@@ -11,6 +11,7 @@
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/pci.h>
+#include <linux/module.h>
 #include <asm/io.h>
 
 struct dma_coherent_mem {
@@ -22,7 +23,7 @@ struct dma_coherent_mem {
 };
 
 void *dma_alloc_coherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, unsigned int __nocast gfp)
+			   dma_addr_t *dma_handle, gfp_t gfp)
 {
 	void *ret;
 	struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
@@ -54,6 +55,7 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 	}
 	return ret;
 }
+EXPORT_SYMBOL(dma_alloc_coherent);
 
 void dma_free_coherent(struct device *dev, size_t size,
 			 void *vaddr, dma_addr_t dma_handle)
@@ -68,11 +70,12 @@ void dma_free_coherent(struct device *dev, size_t size,
 	} else
 		free_pages((unsigned long)vaddr, order);
 }
+EXPORT_SYMBOL(dma_free_coherent);
 
 int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
 				dma_addr_t device_addr, size_t size, int flags)
 {
-	void __iomem *mem_base;
+	void __iomem *mem_base = NULL;
 	int pages = size >> PAGE_SHIFT;
 	int bitmap_size = (pages + 31)/32;
 
@@ -89,14 +92,12 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
 	if (!mem_base)
 		goto out;
 
-	dev->dma_mem = kmalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);
+	dev->dma_mem = kzalloc(sizeof(struct dma_coherent_mem), GFP_KERNEL);
 	if (!dev->dma_mem)
 		goto out;
-	memset(dev->dma_mem, 0, sizeof(struct dma_coherent_mem));
-	dev->dma_mem->bitmap = kmalloc(bitmap_size, GFP_KERNEL);
+	dev->dma_mem->bitmap = kzalloc(bitmap_size, GFP_KERNEL);
 	if (!dev->dma_mem->bitmap)
 		goto free1_out;
-	memset(dev->dma_mem->bitmap, 0, bitmap_size);
 
 	dev->dma_mem->virt_base = mem_base;
 	dev->dma_mem->device_base = device_addr;
@@ -111,6 +112,8 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
  free1_out:
 	kfree(dev->dma_mem->bitmap);
  out:
+	if (mem_base)
+		iounmap(mem_base);
 	return 0;
 }
 EXPORT_SYMBOL(dma_declare_coherent_memory);