--- drivers/gpu/drm/radeon/radeon_display.c

+++ drivers/gpu/drm/radeon/radeon_display.c

@@ -540,6 +540,10 @@ void radeon_compute_pll(struct radeon_pl

*frac_fb_div_p = best_frac_feedback_div;

*ref_div_p = best_ref_div;

*post_div_p = best_post_div;

+ DRM_DEBUG_KMS("%d %d, pll dividers - fb: %d.%d ref: %d, post %d\n",

+ freq, best_freq / 1000, best_feedback_div, best_frac_feedback_div,

+ best_ref_div, best_post_div);

+

}

static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)

@@ -599,7 +603,11 @@ radeon_user_framebuffer_create(struct dr

struct drm_gem_object *obj;

obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);

-

+ if (obj == NULL) {

+ dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "

+ "can't create framebuffer\n", mode_cmd->handle);

+ return NULL;

+ }

return radeon_framebuffer_create(dev, mode_cmd, obj);

}