From: Ulf Magnusson <ulfalizer@gmail.com>
Date: Sun, 8 Oct 2017 17:11:20 +0000 (+0200)
Subject: kconfig: Don't leak 'option' arguments during parsing
X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;ds=sidebyside;h=abe137d30a33eea202364fc452787bbe1b9abe38;hp=abe137d30a33eea202364fc452787bbe1b9abe38;p=carl9170fw.git

kconfig: Don't leak 'option' arguments during parsing

The following strings would leak before this change:

	- option env="LEAKED"
	- option defconfig_list="LEAKED"

These come in the form of T_WORD tokens and are always allocated on the
heap in zconf.l. Free them.

Summary from Valgrind on 'menuconfig' (ARCH=x86) before the fix:

	LEAK SUMMARY:
	   definitely lost: 344,616 bytes in 14,355 blocks
	   ...

Summary after the fix:

	LEAK SUMMARY:
	   definitely lost: 344,568 bytes in 14,352 blocks
	   ...

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
---