linux-kernel - [PATCH] unlzo: Fix input buffer free

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Message-Id: <1321565360-28111-1-git-send-email-s.hauer@pengutronix.de>
Date:	Thu, 17 Nov 2011 22:29:20 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Lasse Collin <lasse.collin@...aani.org>,
	Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH] unlzo: Fix input buffer free

unlzo modifies the pointer to in_buf, so we have to free the
original buffer, not the modified pointer. This only happens
when a fill function is passed, a case which is currently unused
in the kernel.

Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
 lib/decompress_unlzo.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/decompress_unlzo.c b/lib/decompress_unlzo.c
index 5a7a2ad..4531294 100644
--- a/lib/decompress_unlzo.c
+++ b/lib/decompress_unlzo.c
@@ -279,7 +279,7 @@ STATIC inline int INIT unlzo(u8 *input, int in_len,
 	ret = 0;
 exit_2:
 	if (!input)
-		free(in_buf);
+		free(in_buf_save);
 exit_1:
 	if (!output)
 		free(out_buf);
-- 
1.7.7.1

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