diff options
Diffstat (limited to 'kernel/printk/printk.c')
| -rw-r--r-- | kernel/printk/printk.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index fe64a49344bf..ac440b879a2c 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -2189,8 +2189,15 @@ static int __init console_setup(char *str) char *s, *options, *brl_options = NULL; int idx; - if (str[0] == 0) + /* + * console="" or console=null have been suggested as a way to + * disable console output. Use ttynull that has been created + * for exacly this purpose. + */ + if (str[0] == 0 || strcmp(str, "null") == 0) { + __add_preferred_console("ttynull", 0, NULL, NULL, true); return 1; + } if (_braille_console_setup(&str, &brl_options)) return 1; |