From 78b402917931448bcd1fb02a32f0bfc8f720d4f3 Mon Sep 17 00:00:00 2001 From: Andhavarapu Karthik Date: Mon, 26 Apr 2021 02:12:27 +0530 Subject: [PATCH] disp: msm: sde: allow input fence status show only when kickoff in progress Allow input fence status read only when crtc kickoff is in progress to avoid race between status read and fence destroy. Change-Id: I3402bfcb38940628f09f645a3cee31f821daeae9 Signed-off-by: Andhavarapu Karthik --- msm/sde/sde_crtc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/msm/sde/sde_crtc.c b/msm/sde/sde_crtc.c index be0fc090bb..e9aafed198 100644 --- a/msm/sde/sde_crtc.c +++ b/msm/sde/sde_crtc.c @@ -6562,6 +6562,9 @@ static int _sde_debugfs_fence_status_show(struct seq_file *s, void *data) dev = crtc->dev; cstate = to_sde_crtc_state(crtc->state); + if (!sde_crtc->kickoff_in_progress) + goto skip_input_fence; + /* Dump input fence info */ seq_puts(s, "===Input fence===\n"); drm_atomic_crtc_for_each_plane(plane, crtc) { @@ -6589,6 +6592,7 @@ static int _sde_debugfs_fence_status_show(struct seq_file *s, void *data) } } +skip_input_fence: /* Dump release fence info */ seq_puts(s, "\n"); seq_puts(s, "===Release fence===\n");