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From e500cd364086cfc018b100d08c97b2fdf229d029 Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>
Date: Mon, 14 Apr 2008 21:35:25 -0700
Subject: [PATCH 110/134] printk: Fix log_buf_copy termination.
If idx was non-zero and the log had wrapped, len did not get truncated
to stop at the last byte written to the log.
---
kernel/printk.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -279,8 +279,8 @@ int log_buf_copy(char *dest, int idx, in
if (idx < 0 || idx >= max) {
ret = -1;
} else {
- if (len > max)
- len = max;
+ if (len > max - idx)
+ len = max - idx;
ret = len;
idx += (log_end - max);
while (len-- > 0)
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