From: William Douglas <william.r.douglas@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: [PATCHv2] printk: Remove bounds checking for log_prefix
Date: Mon, 15 Aug 2011 14:54:04 -0700 [thread overview]
Message-ID: <871uwm2ver.fsf@intel.com> (raw)
In-Reply-To: <877h6e2x7r.fsf@intel.com> (William Douglas's message of "Mon, 15 Aug 2011 14:15:04 -0700")
Currently log_prefix is testing that the first character of the
log level and facility is less than '0' and greater than '9' (which
is always false).
Since the code being updated works because strtoul bombs out (endp isn't
updated) and 0 is returned anyway just remove the check and don't change
the behavior of the function.
Signed-off-by: William Douglas <william.douglas@intel.com>
---
kernel/printk.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/kernel/printk.c b/kernel/printk.c
index 37dff34..4a0d2ed 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -590,9 +590,6 @@ static size_t log_prefix(const char *p, unsigned int *level, char *special)
/* multi digit including the level and facility number */
char *endp = NULL;
- if (p[1] < '0' && p[1] > '9')
- return 0;
-
lev = (simple_strtoul(&p[1], &endp, 10) & 7);
if (endp == NULL || endp[0] != '>')
return 0;
--
1.7.6
prev parent reply other threads:[~2011-08-15 21:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-15 21:15 [PATCH] printk: Fix bounds checking for log_prefix William Douglas
2011-08-15 21:54 ` William Douglas [this message]
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