The parenthesis are in the wrong place so the original code is
equivalent to:
if (!xen_feature(XENFEAT_writable_descriptor_tables)) { ...
Which obviously was not intended.
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index b9d0898..6011f3b 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -495,7 +495,7 @@ static void privcmd_close(struct vm_area_struct *vma)
struct page **pages = vma->vm_private_data;
int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
- if (!xen_feature(XENFEAT_auto_translated_physmap || !numpgs || !pages))
+ if (!xen_feature(XENFEAT_auto_translated_physmap) || !numpgs || !pages)
return;
xen_unmap_domain_mfn_range(vma, numpgs, pages);
Dan Carpenter
2013-May-15 06:56 UTC
[patch -resend] xen/privcmd: fix condition in privcmd_close()
The parenthesis are in the wrong place so the original code is
equivalent to:
if (!xen_feature(0x1)) { ...
Or:
if (!xen_feature(XENFEAT_writable_descriptor_tables)) { ...
Which obviously was not intended.
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
---
I sent this last November but it was never merged.
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index ca2b00e..2cfc24d 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -504,7 +504,7 @@ static void privcmd_close(struct vm_area_struct *vma)
struct page **pages = vma->vm_private_data;
int numpgs = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
- if (!xen_feature(XENFEAT_auto_translated_physmap || !numpgs || !pages))
+ if (!xen_feature(XENFEAT_auto_translated_physmap) || !numpgs || !pages)
return;
xen_unmap_domain_mfn_range(vma, numpgs, pages);
Konrad Rzeszutek Wilk
2013-May-15 14:23 UTC
[patch -resend] xen/privcmd: fix condition in privcmd_close()
On Wed, May 15, 2013 at 09:56:24AM +0300, Dan Carpenter wrote:> The parenthesis are in the wrong place so the original code is > equivalent to: > > if (!xen_feature(0x1)) { ... > Or: > if (!xen_feature(XENFEAT_writable_descriptor_tables)) { ... > > Which obviously was not intended. > > Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com> > --- > I sent this last November but it was never merged.Ah, it was, but in a different branch (stable/pvh.v8). Let me stick it on branch for Linus.