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Date: Fri, 11 Jan 2019 13:45:15 +0100 From: Petr Mladek <pmladek@...e.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@...il.com>, Steven Rostedt <rostedt@...dmis.org>, Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>, linux-kernel@...r.kernel.org, Petr Mladek <pmladek@...e.com> Subject: [PATCH] sysrq: Restore original console_loglevel when sysrq disabled The sysrq header line is printed with an increased loglevel to provide users some positive feedback. The original loglevel is not restored when the sysrq operation is disabled. This bug was introduced in 2.6.12 (pre-git-history) by the commit ("Allow admin to enable only some of the Magic-Sysrq functions"). Signed-off-by: Petr Mladek <pmladek@...e.com> --- drivers/tty/sysrq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c index 1f03078ec352..2e4e184cfaa6 100644 --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -553,6 +553,7 @@ void __handle_sysrq(int key, bool check_mask) op_p->handler(key); } else { pr_cont("This sysrq operation is disabled.\n"); + console_loglevel = orig_log_level; } } else { pr_cont("HELP : "); -- 2.13.7
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