diff --git a/[refs] b/[refs]
index 7ded50c7aa8f..f44bd543f577 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 13d77c37cab2bb906022309e1e7182c327e49916
+refs/heads/master: 37c00b84d0c1b5c4c65ae837e2235160c03e84c2
diff --git a/trunk/kernel/printk.c b/trunk/kernel/printk.c
index bee36100f110..9adc2a473e6e 100644
--- a/trunk/kernel/printk.c
+++ b/trunk/kernel/printk.c
@@ -666,7 +666,7 @@ asmlinkage int vprintk(const char *fmt, va_list args)
 	}
 	/* Emit the output into the temporary buffer */
 	printed_len += vscnprintf(printk_buf + printed_len,
-				  sizeof(printk_buf), fmt, args);
+				  sizeof(printk_buf) - printed_len, fmt, args);
 
 	/*
 	 * Copy the output into log_buf.  If the caller didn't provide