diff options
| author | Tony Lindgren <tony@atomide.com> | 2023-10-04 11:55:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-05 09:41:17 +0200 |
| commit | b9cbe7e8f27b4e4ab38db5ba5634d12f86574ca7 (patch) | |
| tree | b95f207a66a059c7ed591072379f68c9a1254d6c /drivers/tty/serial | |
| parent | 0d447e927ee86e9ff89010085a47a275c2bb5594 (diff) | |
serial: 8250: Check for valid console index
Let's not allow negative numbers for console index.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20231004085511.42645-1-tony@atomide.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/8250/8250_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 904e319e6b4a..912733151858 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -611,7 +611,7 @@ static int univ8250_console_setup(struct console *co, char *options) * if so, search for the first available port that does have * console support. */ - if (co->index >= UART_NR) + if (co->index < 0 || co->index >= UART_NR) co->index = 0; /* |