[PATCH] printk: ringbuffer: fix error in comment

[Loïc Grégoire]

The printk ringbuffer implementation is described in the comment as
using three ringbuffers, but the current implementation uses two (desc
and data). Update the comment so it matches the code.

Signed-off-by: Loïc Grégoire <loicgre@xxxxxxxxx>
---
 kernel/printk/printk_ringbuffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/printk/printk_ringbuffer.c b/kernel/printk/printk_ringbuffer.c
index 56c8e3d031f4..11dae8229103 100644
--- a/kernel/printk/printk_ringbuffer.c
+++ b/kernel/printk/printk_ringbuffer.c
@@ -14,7 +14,7 @@
  *
  * Data Structure
  * --------------
- * The printk_ringbuffer is made up of 3 internal ringbuffers:
+ * The printk_ringbuffer is made up of 2 internal ringbuffers:
  *
  *   desc_ring
  *     A ring of descriptors and their meta data (such as sequence number,
-- 
2.53.0