diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c index 67db472d3493..a3bfbb6c3e14 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c @@ -145,6 +145,13 @@ struct vmw_fifo_state *vmw_fifo_create(struct vmw_private *dev_priv) (unsigned int) max, (unsigned int) min, (unsigned int) fifo->capabilities); + + if (unlikely(min >= max)) { + drm_warn(&dev_priv->drm, + "FIFO memory is not usable. Driver failed to initialize."); + return ERR_PTR(-ENXIO); + } + return fifo; } |