drm: qxl: Drop duplicated pci_device pointer attribute

qxl_device duplicates the pointer to struct pci_dev, which is not
needed since we already have it in the drm_device structure.  Clean it
up.
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-3-krisman@collabora.co.ukSigned-off-by: Gerd Hoffmann <kraxel@redhat.com>

drivers/gpu/drm/qxl/qxl_drv.h

@@ -243,7 +243,6 @@ struct qxl_device;
 
 struct qxl_device {
 	struct drm_device		*ddev;
-	struct pci_dev			*pdev;
 	unsigned long flags;
 
 	resource_size_t vram_base, vram_size;

drivers/gpu/drm/qxl/qxl_ioctl.c

@@ -375,7 +375,7 @@ static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
 	byte = param->index / 8;
 	idx = param->index % 8;
 
-	if (qdev->pdev->revision < 4)
+	if (dev->pdev->revision < 4)
 		return -ENOSYS;
 
 	if (byte >= 58)

drivers/gpu/drm/qxl/qxl_kms.c

@@ -123,7 +123,6 @@ int qxl_device_init(struct qxl_device *qdev,
 	int r, sb;
 
 	qdev->ddev = ddev;
-	qdev->pdev = pdev;
 	qdev->flags = flags;
 
 	mutex_init(&qdev->gem.mutex);