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>
Reviewed-by: Douglas Anderson <diand...@chromium.org>
Revieved-by: Petr Mladek <pmla...@suse.com>
---
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 2d42a02..58b7d25 100644
--- a/kernel/debug/kdb/kdb_io.c
+++ b/kernel/debug/kdb/kdb_io.c
@@ -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();
}
--
2.7.4
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