From: Uwe Kleine-König u.kleine-koenig@pengutronix.de

mainline inclusion from mainline-v6.8-rc1 commit ce3e112e7ae854249d8755906acc5f27e1542114 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q9GI CVE: CVE-2023-52694

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

--------------------------------

With tpd12s015_remove() marked with __exit this function is discarded when the driver is compiled as a built-in. The result is that when the driver unbinds there is no cleanup done which results in resource leakage or worse.

Fixes: cff5e6f7e83f ("drm/bridge: Add driver for the TI TPD12S015 HDMI level shifter") Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Link: https://patchwork.freedesktop.org/patch/msgid/20231102165640.3307820-19-u.kl... Signed-off-by: Luo Gengkun luogengkun2@huawei.com --- drivers/gpu/drm/bridge/ti-tpd12s015.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-tpd12s015.c b/drivers/gpu/drm/bridge/ti-tpd12s015.c index e0e015243a60..b588fea12502 100644 --- a/drivers/gpu/drm/bridge/ti-tpd12s015.c +++ b/drivers/gpu/drm/bridge/ti-tpd12s015.c @@ -179,7 +179,7 @@ static int tpd12s015_probe(struct platform_device *pdev) return 0; }

-static int __exit tpd12s015_remove(struct platform_device *pdev) +static int tpd12s015_remove(struct platform_device *pdev) { struct tpd12s015_device *tpd = platform_get_drvdata(pdev);

@@ -197,7 +197,7 @@ MODULE_DEVICE_TABLE(of, tpd12s015_of_match);

static struct platform_driver tpd12s015_driver = { .probe = tpd12s015_probe, - .remove = __exit_p(tpd12s015_remove), + .remove = tpd12s015_remove, .driver = { .name = "tpd12s015", .of_match_table = tpd12s015_of_match,