X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fmem.c;h=29c3b631445af851e9e90c93f7a25dbdef08ad7a;hb=bd07ed2b4d7071716c09895e19849e8b04991656;hp=f182752fe918b9b08bb601bd0bc827bb3e1f0cf2;hpb=1077682b2f97cee76a79cf38bab3fa022a97d9f8;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index f182752fe91..29c3b631445 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -231,9 +231,7 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
 static int mmap_mem(struct file * file, struct vm_area_struct * vma)
 {
 #if defined(__HAVE_PHYS_MEM_ACCESS_PROT)
-	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-
-	vma->vm_page_prot = phys_mem_access_prot(file, offset,
+	vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
 						 vma->vm_end - vma->vm_start,
 						 vma->vm_page_prot);
 #elif defined(pgprot_noncached)
@@ -593,7 +591,7 @@ static inline size_t read_zero_pagealigned(char __user * buf, size_t size)
 
 		if (vma->vm_start > addr || (vma->vm_flags & VM_WRITE) == 0)
 			goto out_up;
-		if (vma->vm_flags & (VM_SHARED | VM_HUGETLB))
+		if (vma->vm_flags & (VM_SHARED | VM_HUGETLB | VM_UNPAGED))
 			break;
 		count = vma->vm_end - addr;
 		if (count > size)
@@ -920,7 +918,8 @@ static int __init chr_dev_init(void)
 
 	mem_class = class_create(THIS_MODULE, "mem");
 	for (i = 0; i < ARRAY_SIZE(devlist); i++) {
-		class_device_create(mem_class, MKDEV(MEM_MAJOR, devlist[i].minor),
+		class_device_create(mem_class, NULL,
+					MKDEV(MEM_MAJOR, devlist[i].minor),
 					NULL, devlist[i].name);
 		devfs_mk_cdev(MKDEV(MEM_MAJOR, devlist[i].minor),
 				S_IFCHR | devlist[i].mode, devlist[i].name);