From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 16/25] efi-stdio: limit set_cursor to screen size boundaries
Date: Mon, 13 Dec 2021 22:08:56 +0100 [thread overview]
Message-ID: <20211213210905.3399551-17-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20211213210905.3399551-1-s.hauer@pengutronix.de>
set_cursor_position() may only be called with values actually inside the
screen. Limit the values accordingly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/serial/efi-stdio.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/serial/efi-stdio.c b/drivers/serial/efi-stdio.c
index dacdb74934..0ba8d3f6c0 100644
--- a/drivers/serial/efi-stdio.c
+++ b/drivers/serial/efi-stdio.c
@@ -244,8 +244,11 @@ static int efi_process_square_bracket(struct efi_console_priv *priv, const char
}
break;
case 'H':
- if (arg0 >= 0 && arg1 >= 0)
- priv->out->set_cursor_position(priv->out, arg1 - 1, arg0 - 1);
+ if (arg0 >= 0 && arg1 >= 0) {
+ int row = min_t(int, arg0, priv->rows);
+ int col = min_t(int, arg1, priv->columns);
+ priv->out->set_cursor_position(priv->out, col - 1, row - 1);
+ }
break;
case 'm':
switch (arg0) {
--
2.30.2
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next prev parent reply other threads:[~2021-12-13 21:12 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-13 21:08 [PATCH 00/25] EFI improvements Sascha Hauer
2021-12-13 21:08 ` [PATCH 01/25] efi-devicepath: Make efi_device_path argument const Sascha Hauer
2021-12-13 21:08 ` [PATCH 02/25] efi: move device-path defines and types to header file Sascha Hauer
2021-12-13 21:08 ` [PATCH 03/25] efi: Implement device_path_to_subtype() Sascha Hauer
2021-12-13 21:08 ` [PATCH 04/25] efi: Do not register IPv[46] devices Sascha Hauer
2021-12-13 21:08 ` [PATCH 05/25] console: Fix message colours Sascha Hauer
2021-12-16 12:21 ` Jules Maselbas
2021-12-17 13:23 ` Sascha Hauer
2021-12-17 13:24 ` Jules Maselbas
2021-12-13 21:08 ` [PATCH 06/25] efi-stdio: remove unnecessary check Sascha Hauer
2021-12-13 21:08 ` [PATCH 07/25] efi-stdio: rename to efi_process_escape Sascha Hauer
2021-12-13 21:08 ` [PATCH 08/25] efi-stdio: return bytes actually consumed Sascha Hauer
2021-12-13 21:08 ` [PATCH 09/25] efi-stdio: fix escape sequence end detection Sascha Hauer
2021-12-13 21:08 ` [PATCH 10/25] efi-stdio: improve escape sequence parsing Sascha Hauer
2021-12-13 21:08 ` [PATCH 11/25] efi-stdio: Fix out of bounds error in puts Sascha Hauer
2021-12-13 21:08 ` [PATCH 12/25] efi-stdio: Fix tab printing Sascha Hauer
2021-12-13 21:08 ` [PATCH 13/25] efi-stdio: Implement efi_console_putc() using efi_console_puts() Sascha Hauer
2021-12-15 11:04 ` Ahmad Fatoum
2021-12-13 21:08 ` [PATCH 14/25] efi-stdio: Fix '\b' handling Sascha Hauer
2021-12-13 21:08 ` [PATCH 15/25] efi-stdio: implement input buffering with a kfifo Sascha Hauer
2021-12-13 21:08 ` Sascha Hauer [this message]
2021-12-13 21:08 ` [PATCH 17/25] efi-stdio: implement getting the cursor position Sascha Hauer
2021-12-13 21:08 ` [PATCH 18/25] efi-stdio: Implement setting cursor visibility Sascha Hauer
2021-12-13 21:08 ` [PATCH 19/25] efi-stdio: Support different text modes Sascha Hauer
2021-12-13 21:09 ` [PATCH 20/25] edit: improve screen size detection Sascha Hauer
2021-12-13 21:09 ` [PATCH 21/25] edit: Improve behaviour on efi-stdio console Sascha Hauer
2021-12-16 12:41 ` Jules Maselbas
2021-12-17 13:29 ` Sascha Hauer
2021-12-13 21:09 ` [PATCH 22/25] edit: send escape sequence only for smartscroll Sascha Hauer
2021-12-13 21:09 ` [PATCH 23/25] net: efi-snp: Check for carrier before sending Sascha Hauer
2021-12-13 21:09 ` [PATCH 24/25] efi: add efi_device hook to be called before an image is started Sascha Hauer
2021-12-13 21:09 ` [PATCH 25/25] net: efi-snp: Open protocol exclusively Sascha Hauer
2021-12-15 11:07 ` [PATCH 00/25] EFI improvements Ahmad Fatoum
2021-12-18 12:07 ` Michael Graichen
2021-12-18 13:55 ` Sascha Hauer
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