[PATCH 4.19 088/120] drm/panel: raspberrypi-touchscreen: Prevent double-free

Greg Kroah-Hartman
2021-07-26T16:20:19Z

From: Maxime Ripard <maxime@cerno.tech>

[ 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 <maxime@cerno.tech>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
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 aab6a70ece7f..06bd03915973 100644
--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@@ -454,7 +454,6 @@ 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