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authorPetr Mladek <pmladek@suse.com>2019-01-11 13:45:15 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-03-11 07:53:04 +0100
commit625628b3a67179beecf3f43134277e5f0b4580ca (patch)
treefc844ee25e90da373f0a79005e3096db30cdf880 /drivers/tty
parent4d284a7a2ce3cbe918a9c1fac0679574a40fa7c8 (diff)
sysrq: Restore original console_loglevel when sysrq disabled
commit 075e1a0c50f59ea210561d0d0fedbd945615df78 upstream. 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@suse.com> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tommi Rantala <tommi.t.rantala@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/sysrq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 53cbf4ebef10..303fa5e1136e 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -557,6 +557,7 @@ 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 : ");