drm/amd/display: fix memory leak when using debugfs_lookup()

From Greg Kroah-Hartman
58acd2ebae034db3bacf38708f508fbd12ae2e54 in linux 5.15.y/5.15.68
cbfac7fa491651c57926c99edeb7495c6c1aeac2 in mainline linux

diff --git a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 5c9f521..6d694ce 100644 (file)
--- a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -3007,7 +3007,7 @@ void crtc_debugfs_init(struct drm_crtc *crtc)
                                   &crc_win_y_end_fops);
        debugfs_create_file_unsafe("crc_win_update", 0644, dir, crtc,
                                   &crc_win_update_fops);
-
+       dput(dir);
 }
 #endif
 /*