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| author | Peter Jones <pjones@redhat.com> | 2021-09-16 16:46:55 -0400 |
|---|---|---|
| committer | Peter Jones <pjones@redhat.com> | 2021-10-12 10:40:13 -0400 |
| commit | 35ca373d20fbeeb80aff2202077d614bc89575c0 (patch) | |
| tree | 5745d9e36cc713fe06577180fadf154ec9896f8b /lib/console.c | |
| parent | 1872c929cc3a466c75336307901e67917bcc46bc (diff) | |
| download | efi-boot-shim-35ca373d20fbeeb80aff2202077d614bc89575c0.tar.gz efi-boot-shim-35ca373d20fbeeb80aff2202077d614bc89575c0.zip | |
console: add a clear_screen() primitive
Several places in e.g. MokManager and our console library use
ST->ConOut->ClearScreen directly, without checking for the existence of
a console output device.
This patch adds function to our console library to do that correctly,
instead of using the bug-prone ad hoc implementation everywhere.
Signed-off-by: Peter Jones <pjones@redhat.com>
Diffstat (limited to 'lib/console.c')
| -rw-r--r-- | lib/console.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/lib/console.c b/lib/console.c index 6b1e4c2f..7be5d543 100644 --- a/lib/console.c +++ b/lib/console.c @@ -580,7 +580,7 @@ console_mode_handle(VOID) efi_status = co->SetMode(co, mode_set); } - co->ClearScreen(co); + clear_screen(); if (EFI_ERROR(efi_status)) { console_error(L"Console set mode fail", efi_status); @@ -683,6 +683,17 @@ console_reset(void) co->ClearScreen(co); } +void +clear_screen(void) +{ + SIMPLE_TEXT_OUTPUT_INTERFACE *co = ST->ConOut; + + if (!co) + return; + + co->ClearScreen(co); +} + VOID setup_verbosity(VOID) { |