Commit e8857288 authored Jun 04, 2020 by Sumit Garg Committed by Daniel Thompson Jun 25, 2020

kdb: Check status of console prior to invoking handlers



Check if a console is enabled prior to invoking corresponding write
handler.

Suggested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/1591264879-25920-3-git-send-email-sumit.garg@linaro.org


Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>

parent 9d71b344

kernel/debug/kdb/kdb_io.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -560,6 +560,8 @@ static void kdb_msg_write(const char *msg, int msg_len)
		}

		for_each_console(c) {
		if (!(c->flags & CON_ENABLED))
		continue;
		c->write(c, msg, msg_len);
		touch_nmi_watchdog();
		}

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