From: Haotian Zhang Date: Mon, 20 Oct 2025 10:11:09 +0000 (+0800) Subject: crypto: aspeed - fix double free caused by devm X-Git-Tag: v6.18-rc4~17^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3c9bf72cc1ced1297b235f9422d62b613a3fdae9;p=thirdparty%2Fkernel%2Flinux.git crypto: aspeed - fix double free caused by devm The clock obtained via devm_clk_get_enabled() is automatically managed by devres and will be disabled and freed on driver detach. Manually calling clk_disable_unprepare() in error path and remove function causes double free. Remove the manual clock cleanup in both aspeed_acry_probe()'s error path and aspeed_acry_remove(). Fixes: 2f1cf4e50c95 ("crypto: aspeed - Add ACRY RSA driver") Signed-off-by: Haotian Zhang Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/aspeed/aspeed-acry.c b/drivers/crypto/aspeed/aspeed-acry.c index 8d1c79aaca07d..5993bcba97163 100644 --- a/drivers/crypto/aspeed/aspeed-acry.c +++ b/drivers/crypto/aspeed/aspeed-acry.c @@ -787,7 +787,6 @@ static int aspeed_acry_probe(struct platform_device *pdev) err_engine_rsa_start: crypto_engine_exit(acry_dev->crypt_engine_rsa); clk_exit: - clk_disable_unprepare(acry_dev->clk); return rc; } @@ -799,7 +798,6 @@ static void aspeed_acry_remove(struct platform_device *pdev) aspeed_acry_unregister(acry_dev); crypto_engine_exit(acry_dev->crypt_engine_rsa); tasklet_kill(&acry_dev->done_task); - clk_disable_unprepare(acry_dev->clk); } MODULE_DEVICE_TABLE(of, aspeed_acry_of_matches);