[U-Boot] [PATCH] efi_loader: parameter check OutputString

[Heinrich Schuchardt]

Check the parameters against NULL.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 lib/efi_loader/efi_console.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 909fd5c29e..b2cb18e6d6 100644
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -136,6 +136,11 @@ static efi_status_t EFIAPI efi_cout_output_string(

 	EFI_ENTRY("%p, %p", this, string);

+	if (!this || !string) {
+		ret = EFI_INVALID_PARAMETER;
+		goto out;
+	}
+
 	buf = malloc(utf16_utf8_strlen(string) + 1);
 	if (!buf) {
 		ret = EFI_OUT_OF_RESOURCES;
--
2.20.1