[PATCH v2] checkpatch: enhance check for seq_printf uses that could be seq_puts

[Heba Aamer <heba93aamer@gmail.com>]

This patch enhances the check for seq_printf uses that could
be seq_puts.

It was considering the escape of % is \%, but it is %%.
This led to skipping some valid cases related to that warning.

Signed-off-by: Heba Aamer <heba93aamer@gmail.com>
---
v2: remove not needed if condition

 scripts/checkpatch.pl |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index f0bb6d6..e3ebfe6 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4804,7 +4804,8 @@ sub process {
 # check for seq_printf uses that could be seq_puts
 		if ($sline =~ /\bseq_printf\s*\(.*"\s*\)\s*;\s*$/) {
 			my $fmt = get_quoted_string($line, $rawline);
-			if ($fmt ne "" && $fmt !~ /[^\\]\%/) {
+			$fmt = s/%%//g;
+			if ($fmt !~ /%/) {
 				if (WARN("PREFER_SEQ_PUTS",
 					 "Prefer seq_puts to seq_printf\n" . $herecurr) &&
 				    $fix) {
-- 
1.7.9.5