On Wed, May 27, 2020 at 11:55:57AM +0530, Sumit Garg wrote:
> Check if a console is enabled prior to invoking corresponding write
> handler.
>
> Suggested-by: Sergey Senozhatsky <sergey.senozhat...@gmail.com>
> Signed-off-by: Sumit Garg <sumit.g...@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thomp...@linaro.org>
> ---
> kernel/debug/kdb/kdb_io.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c
> index f6b4d47..349dfcc 100644
> --- a/kernel/debug/kdb/kdb_io.c
> +++ b/kernel/debug/kdb/kdb_io.c
> @@ -564,6 +564,8 @@ static void kdb_msg_write(char *msg, int msg_len)
> kdb_io_write(msg, msg_len, dbg_io_ops->write_char);
>
> for_each_console(c) {
> + if (!(c->flags & CON_ENABLED))
> + continue;
> c->write(c, msg, msg_len);
> touch_nmi_watchdog();
> }
> --
> 2.7.4
>
