PROBLEM: Possible problem in i915_dma_cleanup function in i915_dma.c module

Hello! This problem is found in 3.0 kernel. In i915_dma_cleanup function(drivers/gpu/drm/i915/i915_dma.c module) I found following: ?135static int i915_dma_cleanup(struct drm_device * dev) ?136{ ... ?152 ???/* Clear the HWS virtual address at teardown */ ?153 ???if (I915_NEED_GFX_HWS

PROBLEM: Possible problem in i915_dma_cleanup function in i915_dma.c module

Hello! This problem is found in 3.0 kernel. In i915_dma_cleanup function(drivers/gpu/drm/i915/i915_dma.c module) I found following:  135static int i915_dma_cleanup(struct drm_device * dev)  136{ ...  152    /* Clear the HWS virtual address at teardown */  153    if (I915_NEED_GFX_HWS