linux-kernel - [PATCH] drm/atomic-helper: Call stall_checks() before allocate drm_crtc

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: <20231106073742.158905-1-oushixiong@kylinos.cn>
Date:   Mon,  6 Nov 2023 15:37:42 +0800
From:   oushixiong <oushixiong@...inos.cn>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc:     Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Shixiong Ou <oushixiong@...inos.cn>
Subject: [PATCH] drm/atomic-helper: Call stall_checks() before allocate drm_crtc_commit

From: Shixiong Ou <oushixiong@...inos.cn>

Calling stall_checks() before allocating drm_crtc_commit not after that.

Signed-off-by: Shixiong Ou <oushixiong@...inos.cn>
---
 drivers/gpu/drm/drm_atomic_helper.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 2444fc33dd7c..94ea878b240d 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -2283,6 +2283,10 @@ int drm_atomic_helper_setup_commit(struct drm_atomic_state *state,
 	funcs = state->dev->mode_config.helper_private;
 
 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+		ret = stall_checks(crtc, nonblock);
+		if (ret)
+			return ret;
+
 		commit = kzalloc(sizeof(*commit), GFP_KERNEL);
 		if (!commit)
 			return -ENOMEM;
@@ -2291,10 +2295,6 @@ int drm_atomic_helper_setup_commit(struct drm_atomic_state *state,
 
 		new_crtc_state->commit = commit;
 
-		ret = stall_checks(crtc, nonblock);
-		if (ret)
-			return ret;
-
 		/*
 		 * Drivers only send out events when at least either current or
 		 * new CRTC state is active. Complete right away if everything
-- 
2.25.1