| From 7db27eeaba0fd5ddb1e49977bb7e342a1980aa3d Mon Sep 17 00:00:00 2001 |
| From: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com> |
| Date: Sun, 12 Dec 2021 17:51:17 +0000 |
| Subject: [PATCH 19/27] Return proper error code when rx buffer is larger |
| |
| ffa_mm_communicate should return EFI_BUFFER_TOO_SMALL when |
| the buffer received from the secure world is larger than the |
| comm buffer as this value is forwarded by mm_communicate. |
| |
| Signed-off-by: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com> |
| Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> |
| --- |
| lib/efi_loader/efi_variable_tee.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/lib/efi_loader/efi_variable_tee.c b/lib/efi_loader/efi_variable_tee.c |
| index b6be2b54a030..38655a9dbb7c 100644 |
| --- a/lib/efi_loader/efi_variable_tee.c |
| +++ b/lib/efi_loader/efi_variable_tee.c |
| @@ -358,7 +358,7 @@ static efi_status_t __efi_runtime ffa_mm_communicate(void *comm_buf, ulong comm_ |
| |
| if (rx_data_size > comm_buf_size) { |
| unmap_sysmem(virt_shared_buf); |
| - return EFI_OUT_OF_RESOURCES; |
| + return EFI_BUFFER_TOO_SMALL; |
| } |
| |
| efi_memcpy_runtime(comm_buf, virt_shared_buf, rx_data_size); |
| -- |
| 2.30.2 |
| |