From: Artem B. Bityuckiy <dedekind@infradead.org>
Date: Sat, 16 Apr 2005 22:23:58 +0000 (-0700)
Subject: [PATCH] crypto: call zlib end functions on deflate exit path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9ffb7146f0aa9c0070cda3d8701b0a89e34913d1;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[PATCH] crypto: call zlib end functions on deflate exit path

In the deflate_[compress|uncompress|pcompress] functions we call the
zlib_[in|de]flateReset function at the beginning.  This is OK.  But when we
unload the deflate module we don't call zlib_[in|de]flateEnd to free all
the zlib internal data.  It looks like a bug for me.  Please, consider the
attached patch.

Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/crypto/deflate.c b/crypto/deflate.c
index 77d7655d316..bc73342cd1e 100644
--- a/crypto/deflate.c
+++ b/crypto/deflate.c
@@ -93,11 +93,13 @@ out_free:
 
 static void deflate_comp_exit(struct deflate_ctx *ctx)
 {
+	zlib_deflateEnd(&ctx->comp_stream);
 	vfree(ctx->comp_stream.workspace);
 }
 
 static void deflate_decomp_exit(struct deflate_ctx *ctx)
 {
+	zlib_inflateEnd(&ctx->decomp_stream);
 	kfree(ctx->decomp_stream.workspace);
 }