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Subject[PATCH v4 2/4] kdb: Check status of console prior to invoking handlers
Date
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>
---
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 e46f33e..fad38eb 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);

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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