[PATCH v3] checkpatch: Fix checks for Kconfig help text

[Leo Yan <leo.yan@linaro.org>]

If one patch has Kconfig section, the check script variable '$is_start'
will be set by first 'config' line and the variable '$is_end' is to be
set by the second 'config' line. But patches often has only one
'config' line so we have no chance to set '$is_end', as result below
condition is invalid and it skips check for Kconfig description:

	if ($is_start && $is_end && $length < $min_conf_desc_length) {
		......
	}

When script runs to this condition sentence it means the Kconfig
section parsing has been completed, whatever '$is_end' is true
or not. So removes '$is_end' from condition sentence.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 95cda3e..6050323 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2796,7 +2796,7 @@ sub process {
 				}
 				$length++;
 			}
-			if ($is_start && $is_end && $length < $min_conf_desc_length) {
+			if ($is_start && $length < $min_conf_desc_length) {
 				WARN("CONFIG_DESCRIPTION",
 				     "please write a paragraph that describes the config symbol fully\n" . $herecurr);
 			}
-- 
2.7.4