Thread (183 messages) 183 messages, 7 authors, 2022-01-31
STALE1622d REVIEWED: 1 (0M)

[PATCH 5.10 102/167] drm/panel: raspberrypi-touchscreen: Prevent double-free

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-26 16:23:16
Also in: lkml
Subsystem: drm drivers, drm drivers and misc gpu patches, drm panel drivers, the rest · Maintainers: David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Neil Armstrong, Linus Torvalds

From: Maxime Ripard <redacted>

[ Upstream commit 7bbcb919e32d776ca8ddce08abb391ab92eef6a9 ]

The mipi_dsi_device allocated by mipi_dsi_device_register_full() is
already free'd on release.

Fixes: 2f733d6194bd ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.")
Signed-off-by: Maxime Ripard <redacted>
Reviewed-by: Sam Ravnborg <redacted>
Link: https://patchwork.freedesktop.org/patch/msgid/20210720134525.563936-9-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 1 -
 1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
index 5e9ccefb88f6..bbdd086be7f5 100644
--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@@ -447,7 +447,6 @@ static int rpi_touchscreen_remove(struct i2c_client *i2c)
 	drm_panel_remove(&ts->base);
 
 	mipi_dsi_device_unregister(ts->dsi);
-	kfree(ts->dsi);
 
 	return 0;
 }
-- 
2.30.2


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