Summary: DRM: Set dmah->size in drm_pci_alloc()

The missing assignment to dmah->size in drm_pci_alloc() was causing massive
memory corruption when the PCI consistent memory block was later freed by
drm_pci_free() (size passed to pci_free_consistent() was bogus).

https://bugs.freedesktop.org/show_bug.cgi?id=3217

Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>

--- drm/linux-core/drm_pci.c.alt-drm_pci-fix	2005-05-21 17:19:49 +0400
+++ drm/linux-core/drm_pci.c	2005-05-21 19:10:39 +0400
@@ -82,6 +82,7 @@ drm_dma_handle_t *drm_pci_alloc(drm_devi
 	if (!dmah)
 		return NULL;
 
+	dmah->size = size;
 	dmah->vaddr = pci_alloc_consistent(dev->pdev, size, &dmah->busaddr);
 
 #if DRM_DEBUG_MEMORY