efi_loader: fix SetMode()

Correct the check of the mode number in SetMode() service of the simple
text output protocol.

Clear the screen in SetMode().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c
index 2fc25e118f2ddb07141b6895326defba89888882..fef0b2e1e253d09b2907c44009d1eb90102bf299 100644 (file)
--- a/lib/efi_loader/efi_console.c
+++ b/lib/efi_loader/efi_console.c
@@ -316,23 +316,6 @@ static efi_status_t EFIAPI efi_cout_query_mode(
        return EFI_EXIT(EFI_SUCCESS);
 }
 
-static efi_status_t EFIAPI efi_cout_set_mode(
-                       struct efi_simple_text_output_protocol *this,
-                       unsigned long mode_number)
-{
-       EFI_ENTRY("%p, %ld", this, mode_number);
-
-
-       if (mode_number > efi_con_mode.max_mode)
-               return EFI_EXIT(EFI_UNSUPPORTED);
-
-       efi_con_mode.mode = mode_number;
-       efi_con_mode.cursor_column = 0;
-       efi_con_mode.cursor_row = 0;
-
-       return EFI_EXIT(EFI_SUCCESS);
-}
-
 static const struct {
        unsigned int fg;
        unsigned int bg;
@@ -378,6 +361,20 @@ static efi_status_t EFIAPI efi_cout_clear_screen(
        return EFI_EXIT(EFI_SUCCESS);
 }
 
+static efi_status_t EFIAPI efi_cout_set_mode(
+                       struct efi_simple_text_output_protocol *this,
+                       unsigned long mode_number)
+{
+       EFI_ENTRY("%p, %ld", this, mode_number);
+
+       if (mode_number >= efi_con_mode.max_mode)
+               return EFI_EXIT(EFI_UNSUPPORTED);
+       efi_con_mode.mode = mode_number;
+       EFI_CALL(efi_cout_clear_screen(this));
+
+       return EFI_EXIT(EFI_SUCCESS);
+}
+
 static efi_status_t EFIAPI efi_cout_reset(
                        struct efi_simple_text_output_protocol *this,
                        char extended_verification)