console: don't prefer first registered if DT specifies stdout-path

[cascardo/linux.git] / kernel / printk / printk.c

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index eea6dbc..8019cc0 100644 (file)
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -253,6 +253,17 @@ static int preferred_console = -1;
 int console_set_on_cmdline;
 EXPORT_SYMBOL(console_set_on_cmdline);
 
+#ifdef CONFIG_OF
+static bool of_specified_console;
+
+void console_set_by_of(void)
+{
+       of_specified_console = true;
+}
+#else
+# define of_specified_console false
+#endif
+
 /* Flag: console code may call schedule() */
 static int console_may_schedule;
 
@@ -2647,7 +2658,7 @@ void register_console(struct console *newcon)
         *      didn't select a console we take the first one
         *      that registers here.
         */
-       if (preferred_console < 0) {
+       if (preferred_console < 0 && !of_specified_console) {
                if (newcon->index < 0)
                        newcon->index = 0;
                if (newcon->setup == NULL ||