checkpatch: fix left brace warning

Using checkpatch.pl with Perl 5.22.0 generates the following warning:

    Unescaped left brace in regex is deprecated, passed through in regex;

This patch fixes the warnings by escaping occurrences of the left brace
inside the regular expression.

Signed-off-by: Eddie Kovsky <ewk@edkovsky.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 577241ed3696..ba47dab3d091 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3571,7 +3571,7 @@ sub process {
 # function brace can't be on same line, except for #defines of do while,
 # or if closed on same line
                 if (($line=~/$Type\s*$Ident\(.*\).*\s*{/) and
-                    !($line=~/\#\s*define.*do\s{/) and !($line=~/}/)) {
+                    !($line=~/\#\s*define.*do\s\{/) and !($line=~/}/)) {
                         if (ERROR("OPEN_BRACE",
                                   "open brace '{' following function declarations go on the next line\n" . $herecurr) &&
                             $fix) {
@@ -4083,8 +4083,8 @@ sub process {
 ##              }
 
 #need space before brace following if, while, etc
-                if (($line =~ /\(.*\){/ && $line !~ /\($Type\){/) ||
-                    $line =~ /do{/) {
+                if (($line =~ /\(.*\)\{/ && $line !~ /\($Type\){/) ||
+                    $line =~ /do\{/) {
                         if (ERROR("SPACING",
                                   "space required before the open brace '{'\n" . $herecurr) &&
                             $fix) {
@@ -4531,7 +4531,7 @@ sub process {
                             $dstat !~ /^for\s*$Constant$/ &&                            # for (...)
                             $dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ &&   # for (...) bar()
                             $dstat !~ /^do\s*{/ &&                                      # do {...
-                            $dstat !~ /^\({/ &&                                         # ({...
+                            $dstat !~ /^\(\{/ &&                                                # ({...
                             $ctx !~ /^.\s*#\s*define\s+TRACE_(?:SYSTEM|INCLUDE_FILE|INCLUDE_PATH)\b/)
                         {
                                 $ctx =~ s/\n*$//;