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path: root/drivers/gpu/drm/drm_gem_framebuffer_helper.c
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Diffstat (limited to 'drivers/gpu/drm/drm_gem_framebuffer_helper.c')
-rw-r--r--drivers/gpu/drm/drm_gem_framebuffer_helper.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
index 6d3c26efdeeb..61339a9cd010 100644
--- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c
+++ b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
@@ -53,7 +53,11 @@ MODULE_IMPORT_NS(DMA_BUF);
struct drm_gem_object *drm_gem_fb_get_obj(struct drm_framebuffer *fb,
unsigned int plane)
{
- if (plane >= ARRAY_SIZE(fb->obj))
+ struct drm_device *dev = fb->dev;
+
+ if (drm_WARN_ON_ONCE(dev, plane >= ARRAY_SIZE(fb->obj)))
+ return NULL;
+ else if (drm_WARN_ON_ONCE(dev, !fb->obj[plane]))
return NULL;
return fb->obj[plane];