1 files changed, 5 insertions, 0 deletions

diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 2acfd3fdc0cc..41fd965c80c6 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -178,6 +178,11 @@ asmlinkage void early_printk(const char *fmt, ...)
 
 static inline void early_console_register(struct console *con, int keep_early)
 {
+        if (early_console->index != -1) {
+                printk(KERN_CRIT "ERROR: earlyprintk= %s already used\n",
+                       con->name);
+                return;
+        }
         early_console = con;
         if (keep_early)
                 early_console->flags &= ~CON_BOOT;