linux-kernel - [PATCH 02/14] drm/panel/raspberrypi: Use refcounted allocation in place of devm

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

Message-Id: <20250710-b4-driver-convert-last-part-july-v1-2-de73ba81b2f5@redhat.com>
Date: Thu, 10 Jul 2025 23:31:13 -0500
From: Anusha Srivatsa <asrivats@...hat.com>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <jessica.zhang@....qualcomm.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Florian Fainelli <florian.fainelli@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Sumit Semwal <sumit.semwal@...aro.org>, 
 Casey Connolly <casey.connolly@...aro.org>, 
 Jerry Han <hanxu5@...qin.corp-partner.google.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-rpi-kernel@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
 Anusha Srivatsa <asrivats@...hat.com>
Subject: [PATCH 02/14] drm/panel/raspberrypi: Use refcounted allocation in
 place of devm_kzalloc()

Move to using the new API devm_drm_panel_alloc() to allocate the
panel. In the call to the new API, avoid using explicit type and use
__typeof() for more type safety.

Signed-off-by: Anusha Srivatsa <asrivats@...hat.com>
---
 drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
index e10e469aa7a6c5684c9240ea74c8d1184c7723a5..dc4bb8ad913185f94e3f7e1a34fbddc31f21f098 100644
--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@@ -373,9 +373,12 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c)
 		.node = NULL,
 	};
 
-	ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);
-	if (!ts)
-		return -ENOMEM;
+	ts = devm_drm_panel_alloc(dev, __typeof(*ts), base,
+				  &rpi_touchscreen_funcs,
+				  DRM_MODE_CONNECTOR_DSI);
+
+	if (IS_ERR(ts))
+		return PTR_ERR(ts);
 
 	i2c_set_clientdata(i2c, ts);
 
@@ -428,9 +431,6 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c)
 		return PTR_ERR(ts->dsi);
 	}
 
-	drm_panel_init(&ts->base, dev, &rpi_touchscreen_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	/* This appears last, as it's what will unblock the DSI host
 	 * driver's component bind function.
 	 */

-- 
2.48.1