drm: fix warning in drm_pci.c

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/drm_pci.c b/drivers/char/drm/drm_pci.c
index 3e452e8..09ed712 100644
--- a/drivers/char/drm/drm_pci.c
+++ b/drivers/char/drm/drm_pci.c
@@ -50,7 +50,7 @@
 				dma_addr_t maxaddr)
 {
 	drm_dma_handle_t *dmah;
-#if DRM_DEBUG_MEMORY
+#ifdef DRM_DEBUG_MEMORY
 	int area = DRM_MEM_DMA;
 
 	spin_lock(&drm_mem_lock);
@@ -81,7 +81,7 @@
 	dmah->size = size;
 	dmah->vaddr = pci_alloc_consistent(dev->pdev, size, &dmah->busaddr);
 
-#if DRM_DEBUG_MEMORY
+#ifdef DRM_DEBUG_MEMORY
 	if (dmah->vaddr == NULL) {
 		spin_lock(&drm_mem_lock);
 		++drm_mem_stats[area].fail_count;
@@ -116,14 +116,14 @@
 void
 __drm_pci_free(drm_device_t * dev, drm_dma_handle_t *dmah)
 {
-#if DRM_DEBUG_MEMORY
+#ifdef DRM_DEBUG_MEMORY
 	int area = DRM_MEM_DMA;
 	int alloc_count;
 	int free_count;
 #endif
 
 	if (!dmah->vaddr) {
-#if DRM_DEBUG_MEMORY
+#ifdef DRM_DEBUG_MEMORY
 		DRM_MEM_ERROR(area, "Attempt to free address 0\n");
 #endif
 	} else {
@@ -131,7 +131,7 @@
 				    dmah->busaddr);
 	}
 
-#if DRM_DEBUG_MEMORY
+#ifdef DRM_DEBUG_MEMORY
 	spin_lock(&drm_mem_lock);
 	free_count = ++drm_mem_stats[area].free_count;
 	alloc_count = drm_mem_stats[area].succeed_count;