This patch adds a check for the vgem_device before handling it.
Signed-off-by: Melissa Wen melissa.srw@gmail.com --- drivers/gpu/drm/vgem/vgem_drv.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c index cb884c890065..119ca887cb8a 100644 --- a/drivers/gpu/drm/vgem/vgem_drv.c +++ b/drivers/gpu/drm/vgem/vgem_drv.c @@ -472,7 +472,14 @@ static int __init vgem_init(void)
static void __exit vgem_exit(void) { - struct platform_device *pdev = vgem_device->platform; + struct platform_device *pdev; + + if (!vgem_device) { + DRM_INFO("vgem_device is NULL\n"); + return; + } + + pdev = vgem_device->platform;
drm_dev_unregister(&vgem_device->drm); devres_release_group(&pdev->dev, NULL);