[PATCH 10/11] vmwgfx: Save at least one screen layout

[Thomas Hellstrom]

Save at least one screen layout during vga save to avoid odd things
happening during restore.

Signed-off-by: Thomas Hellstrom <thellstrom at vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c 
b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 5fb68f3..87c6e61 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1025,6 +1025,9 @@ int vmw_kms_save_vga(struct vmw_private *vmw_priv)
        vmw_priv->num_displays = vmw_read(vmw_priv,
                                          SVGA_REG_NUM_GUEST_DISPLAYS);

+       if (vmw_priv->num_displays == 0)
+               vmw_priv->num_displays = 1;
+
        for (i = 0; i < vmw_priv->num_displays; ++i) {
                save = &vmw_priv->vga_save[i];
                vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
-- 
1.6.2.5