From: Dan Carpenter <error27@gmail.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
Shaun Ruffell <sruffell@digium.com>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] dma-debug: off by one issue
Date: Fri, 02 Apr 2010 11:28:43 +0000 [thread overview]
Message-ID: <20100402112843.GI5265@bicker> (raw)
We need to reserve the last character for the NULL terminator.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index ba8b670..01e6427 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -570,7 +570,7 @@ static ssize_t filter_write(struct file *file, const char __user *userbuf,
* Now parse out the first token and use it as the name for the
* driver to filter for.
*/
- for (i = 0; i < NAME_MAX_LEN; ++i) {
+ for (i = 0; i < NAME_MAX_LEN - 1; ++i) {
current_driver_name[i] = buf[i];
if (isspace(buf[i]) || buf[i] = ' ' || buf[i] = 0)
break;
next reply other threads:[~2010-04-02 11:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-02 11:28 Dan Carpenter [this message]
2010-04-03 20:47 ` [patch] dma-debug: off by one issue Joerg Roedel
2010-04-05 12:53 ` Dan Carpenter
2010-04-05 14:02 ` Joerg Roedel
2010-04-05 14:09 ` Joerg Roedel
2010-04-06 16:45 ` [patch v2] dma-debug: cleanup for loop Dan Carpenter
2010-04-07 10:05 ` Joerg Roedel
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