linux-kernel - [PATCH] drm/dp_mst: add missed nv50_outp_release in nv50_msto

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20191206075321.18239-1-hslester96@gmail.com>
Date:   Fri,  6 Dec 2019 15:53:21 +0800
From:   Chuhong Yuan <hslester96@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Chuhong Yuan <hslester96@...il.com>
Subject: [PATCH] drm/dp_mst: add missed nv50_outp_release in nv50_msto_disable

nv50_msto_disable() does not call nv50_outp_release() to match
nv50_outp_acquire() like other disable().
Add the missed call to fix it.

Signed-off-by: Chuhong Yuan <hslester96@...il.com>
---
 drivers/gpu/drm/nouveau/dispnv50/disp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 549486f1d937..84e1417355cc 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -862,8 +862,10 @@ nv50_msto_disable(struct drm_encoder *encoder)
 
 	mstm->outp->update(mstm->outp, msto->head->base.index, NULL, 0, 0);
 	mstm->modified = true;
-	if (!--mstm->links)
+	if (!--mstm->links) {
 		mstm->disabled = true;
+		nv50_outp_release(mstm->outp);
+	}
 	msto->disabled = true;
 }
 
-- 
2.24.0