drm: make drm_get_format_name thread-safe

[deliverable/linux.git] / drivers / gpu / drm / amd / amdgpu / dce_v8_0.c

diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
index 4fdfab1e920012b4e770071af2c05e0357753c07..71a037546daed46e17114aa51895d953b700d49b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
@@ -1952,6 +1952,7 @@ static int dce_v8_0_crtc_do_set_base(struct drm_crtc *crtc,
        u32 viewport_w, viewport_h;
        int r;
        bool bypass_lut = false;
+       const char *format_name;
 
        /* no fb bound */
        if (!atomic && !crtc->primary->fb) {
@@ -2056,8 +2057,9 @@ static int dce_v8_0_crtc_do_set_base(struct drm_crtc *crtc,
                bypass_lut = true;
                break;
        default:
-               DRM_ERROR("Unsupported screen format %s\n",
-                         drm_get_format_name(target_fb->pixel_format));
+               format_name = drm_get_format_name(target_fb->pixel_format);
+               DRM_ERROR("Unsupported screen format %s\n", format_name);
+               kfree(format_name);
                return -EINVAL;
        }