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authorHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>2008-12-19 10:23:03 -0800
committerIngo Molnar <mingo@elte.hu>2008-12-19 22:52:47 +0100
commit26cc271db798cf211d35967cbfbb53e997126b84 (patch)
treec4131ca7cdf2cfbc90c421b82e2b3b88b8927e6a
parent929096fe9ff1f4b3645cf3919527ab47e8d5e17c (diff)
downloadop-kernel-dev-26cc271db798cf211d35967cbfbb53e997126b84.zip
op-kernel-dev-26cc271db798cf211d35967cbfbb53e997126b84.tar.gz
printk: fix discarding message when recursion_bug
Impact: fix truncated recursion bug message printout When recursion_bug is true, kernel discards original message because printk_buf contains recursion_bug_msg with NULL terminator. The sizeof(recursion_bug_msg) makes this, use strlen() to get correct length without NULL terminator. Reported-by: Toshikazu Nakayama <nakayama.ts@ncos.nec.co.jp> Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/printk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index f492f15..e651ab0 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -662,7 +662,7 @@ asmlinkage int vprintk(const char *fmt, va_list args)
if (recursion_bug) {
recursion_bug = 0;
strcpy(printk_buf, recursion_bug_msg);
- printed_len = sizeof(recursion_bug_msg);
+ printed_len = strlen(recursion_bug_msg);
}
/* Emit the output into the temporary buffer */
printed_len += vscnprintf(printk_buf + printed_len,
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