aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-03-24 23:23:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-03-24 23:23:39 -0700
commit4742dc1d7670bd00253d2dfb637d55446dc6ef81 (patch)
treed22a9b7002413e692b8eda18f20b555c06263921 /drivers
parent49741c4d01554c2630cea02cfdf236b17062a912 (diff)
parent815d2d50da41f28aae58f5e9b3c61c3094422749 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: driver core: debug for bad dev_attr_show() return value. UIO: add pgprot_noncached() to UIO mmap code
Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/core.c5
-rw-r--r--drivers/uio/uio.c2
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 7de543d1d0b..24198ad0197 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -19,6 +19,7 @@
#include <linux/kdev_t.h>
#include <linux/notifier.h>
#include <linux/genhd.h>
+#include <linux/kallsyms.h>
#include <asm/semaphore.h>
#include "base.h"
@@ -68,6 +69,10 @@ static ssize_t dev_attr_show(struct kobject *kobj, struct attribute *attr,
if (dev_attr->show)
ret = dev_attr->show(dev, dev_attr, buf);
+ if (ret >= (ssize_t)PAGE_SIZE) {
+ print_symbol("dev_attr_show: %s returned bad count\n",
+ (unsigned long)dev_attr->show);
+ }
return ret;
}
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index e8a01f26454..11759080ca5 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -470,6 +470,8 @@ static int uio_mmap_physical(struct vm_area_struct *vma)
vma->vm_flags |= VM_IO | VM_RESERVED;
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
return remap_pfn_range(vma,
vma->vm_start,
idev->info->mem[mi].addr >> PAGE_SHIFT,