From 30167fadbf87fa901a2fee49c30a5c5a506a43e8 Mon Sep 17 00:00:00 2001 From: Runyu Xiao Date: Fri, 4 Sep 2026 14:11:37 +0800 Subject: [PATCH] hte: tegra194-test: shut down timer before GPIO release tegra_hte_test_remove() releases GPIO descriptors before stopping hte.timer. gpio_timer_cb() accesses hte.gpio_out and rearms the timer, so a callback concurrent with remove can use a released descriptor and rearm after teardown. Shut down the timer before releasing the GPIO descriptors. timer_shutdown_sync() waits for a running callback and prevents it from being rearmed. Fixes: 9a75a7cd03c9 ("hte: Add Tegra HTE test driver") Cc: stable@vger.kernel.org Assisted-by: Codex:GPT-5 Signed-off-by: Runyu Xiao Acked-by: Dipen Patel Signed-off-by: Dipen Patel --- drivers/hte/hte-tegra194-test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hte/hte-tegra194-test.c b/drivers/hte/hte-tegra194-test.c index 32907d951ec9..cca33868fb03 100644 --- a/drivers/hte/hte-tegra194-test.c +++ b/drivers/hte/hte-tegra194-test.c @@ -217,10 +217,10 @@ static void tegra_hte_test_remove(struct platform_device *pdev) { (void)pdev; + timer_shutdown_sync(&hte.timer); free_irq(hte.gpio_in_irq, &hte); gpiod_put(hte.gpio_in); gpiod_put(hte.gpio_out); - timer_delete_sync(&hte.timer); } static struct platform_driver tegra_hte_test_driver = {