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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 18:02:46 +0100
commit28178a88942819c19d9bc15e3a0703f60de1f2bb (patch)
tree6dfa639118885c0183df16c960f0eba7c22e687f /drivers/tty
parentffe09a48bd96094786c303f1cf29b32a29aa6dc8 (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 377b3592384e..a5516523f816 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -560,6 +560,7 @@ 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 : ");