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-rw-r--r--kernel/printk.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index 01b58d7d17f..5092397fac2 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -588,8 +588,7 @@ asmlinkage int vprintk(const char *fmt, va_list args)
log_level_unknown = 1;
}
- if (!cpu_online(smp_processor_id()) &&
- system_state != SYSTEM_RUNNING) {
+ if (!cpu_online(smp_processor_id())) {
/*
* Some console drivers may assume that per-cpu resources have
* been allocated. So don't allow them to be called by this
@@ -876,8 +875,10 @@ void register_console(struct console * console)
break;
console->flags |= CON_ENABLED;
console->index = console_cmdline[i].index;
- if (i == preferred_console)
+ if (i == selected_console) {
console->flags |= CON_CONSDEV;
+ preferred_console = selected_console;
+ }
break;
}
@@ -897,6 +898,8 @@ void register_console(struct console * console)
if ((console->flags & CON_CONSDEV) || console_drivers == NULL) {
console->next = console_drivers;
console_drivers = console;
+ if (console->next)
+ console->next->flags &= ~CON_CONSDEV;
} else {
console->next = console_drivers->next;
console_drivers->next = console;
@@ -937,10 +940,14 @@ int unregister_console(struct console * console)
/* If last console is removed, we re-enable picking the first
* one that gets registered. Without that, pmac early boot console
* would prevent fbcon from taking over.
+ *
+ * If this isn't the last console and it has CON_CONSDEV set, we
+ * need to set it on the next preferred console.
*/
if (console_drivers == NULL)
preferred_console = selected_console;
-
+ else if (console->flags & CON_CONSDEV)
+ console_drivers->flags |= CON_CONSDEV;
release_console_sem();
return res;