diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index c04ac361fcf17..f6d711b07e15c 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -6,6 +6,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include #include #include @@ -612,6 +613,16 @@ static int optee_probe(struct platform_device *pdev) u32 sec_caps; int rc; + /* + * The kernel may have crashed at the same time that all available + * secure world threads were suspended and we cannot reschedule the + * suspended threads without access to the crashed kernel's wait_queue. + * Therefore, we cannot reliably initialize the OP-TEE driver in the + * kdump kernel. + */ + if (is_kdump_kernel()) + return -ENODEV; + invoke_fn = get_invoke_func(&pdev->dev); if (IS_ERR(invoke_fn)) return PTR_ERR(invoke_fn);