diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c index 11019c2c62cc..769974375b4b 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c @@ -49,6 +49,11 @@ void mpc1_set_bg_color(struct mpc *mpc, /* find bottommost mpcc. */ while (bottommost_mpcc->mpcc_bot) { + /* avoid circular linked link */ + ASSERT(bottommost_mpcc != bottommost_mpcc->mpcc_bot); + if (bottommost_mpcc == bottommost_mpcc->mpcc_bot) + break; + bottommost_mpcc = bottommost_mpcc->mpcc_bot; } |