[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>

1 files changed, 2 insertions, 0 deletions

diff --git a/crypto/deflate.c b/crypto/deflate.c
index 77d7655d316a..bc73342cd1ec 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);
 }