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