[38/65] vmwgfx: Fix assignment in vmw_framebuffer_create_handle

From: Greg KH
Date: Wed Feb 01 2012 - 16:44:59 EST


3.0-stable review patch. If anyone has any objections, please let me know.

------------------

From: Ryan Mallon <rmallon@xxxxxxxxx>

commit bf9c05d5b6d19b3e4c9fe21047694e94f48db89b upstream.

The assignment of handle in vmw_framebuffer_create_handle doesn't actually do anything useful and is incorrectly assigning an integer value to a pointer argument. It appears that this is a typo and should be dereferencing handle rather than assigning to it directly. This fixes a bug where an undefined handle value is potentially returned to user-space.

Signed-off-by: Ryan Mallon <rmallon@xxxxxxxxx>
Reviewed-by: Jakob Bornecrantz<jakob@xxxxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -313,7 +313,7 @@ int vmw_framebuffer_create_handle(struct
unsigned int *handle)
{
if (handle)
- handle = 0;
+ *handle = 0;

return 0;
}


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