diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-03-24 23:23:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-03-24 23:23:39 -0700 |
| commit | 4742dc1d7670bd00253d2dfb637d55446dc6ef81 (patch) | |
| tree | d22a9b7002413e692b8eda18f20b555c06263921 /drivers | |
| parent | 49741c4d01554c2630cea02cfdf236b17062a912 (diff) | |
| parent | 815d2d50da41f28aae58f5e9b3c61c3094422749 (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.c | 5 | ||||
| -rw-r--r-- | drivers/uio/uio.c | 2 |
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, |