From: zhengbin <zhengbi...@huawei.com> [ Upstream commit b33d567560c1aadf3033290d74d4fd67af47aa61 ]
In panel_attach, if misc_register fails, we need to delete scan_timer, which was setup in keypad_init->init_scan_timer. Reported-by: Hulk Robot <hul...@huawei.com> Signed-off-by: zhengbin <zhengbi...@huawei.com> Signed-off-by: Miguel Ojeda <miguel.ojeda.sando...@gmail.com> Signed-off-by: Sasha Levin <sas...@kernel.org> --- drivers/auxdisplay/panel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c index e06de63497cf8..e6bd727da503a 100644 --- a/drivers/auxdisplay/panel.c +++ b/drivers/auxdisplay/panel.c @@ -1617,6 +1617,8 @@ static void panel_attach(struct parport *port) return; err_lcd_unreg: + if (scan_timer.function) + del_timer_sync(&scan_timer); if (lcd.enabled) charlcd_unregister(lcd.charlcd); err_unreg_device: -- 2.20.1