lkml.org 
[lkml]   [2013]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] Prevent use of unitialized variable
Date
Run checkpatch.pl -f kernel/fork.c in commit
ecf02a607bd801e742d7bb35c6e40f7ca15edf03
and checkpatch.pl will try to use an uninitialized variable.
This patch fixes that.

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
---
scripts/checkpatch.pl | 19 +++++++++++--------
1 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4d2c7df..4e34368 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3363,14 +3363,17 @@ sub process {

my $ms_addr = $2;
my $ms_val = $7;
- my $ms_size = $12;
-
- if ($ms_size =~ /^(0x|)0$/i) {
- ERROR("MEMSET",
- "memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n");
- } elsif ($ms_size =~ /^(0x|)1$/i) {
- WARN("MEMSET",
- "single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n");
+
+ if (defined $12) {
+ my $ms_size = $12;
+
+ if ($ms_size =~ /^(0x|)0$/i) {
+ ERROR("MEMSET",
+ "memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n");
+ } elsif ($ms_size =~ /^(0x|)1$/i) {
+ WARN("MEMSET",
+ "single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n");
+ }
}
}

--
1.7.2.5


\
 
 \ /
  Last update: 2013-01-11 10:41    [W:1.146 / U:1.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site