X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=crypto%2Fzlib.c;h=739b8fca4cea518777f569372ded2e0b751dcd49;hb=a5db219f4cf9f67995eabd53b81a1232c82f5852;hp=33609bab614ed118096918f40e00cafb4de3ad4b;hpb=f9dd2134374c8de6b911e2b8652c6c9622eaa658;p=karo-tx-linux.git

diff --git a/crypto/zlib.c b/crypto/zlib.c
index 33609bab614e..739b8fca4cea 100644
--- a/crypto/zlib.c
+++ b/crypto/zlib.c
@@ -95,11 +95,10 @@ static int zlib_compress_setup(struct crypto_pcomp *tfm, void *params,
 	zlib_comp_exit(ctx);
 
 	workspacesize = zlib_deflate_workspacesize();
-	stream->workspace = vmalloc(workspacesize);
+	stream->workspace = vzalloc(workspacesize);
 	if (!stream->workspace)
 		return -ENOMEM;
 
-	memset(stream->workspace, 0, workspacesize);
 	ret = zlib_deflateInit2(stream,
 				tb[ZLIB_COMP_LEVEL]
 					? nla_get_u32(tb[ZLIB_COMP_LEVEL])
@@ -165,15 +164,15 @@ static int zlib_compress_update(struct crypto_pcomp *tfm,
 		return -EINVAL;
 	}
 
+	ret = req->avail_out - stream->avail_out;
 	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
 		 stream->avail_in, stream->avail_out,
-		 req->avail_in - stream->avail_in,
-		 req->avail_out - stream->avail_out);
+		 req->avail_in - stream->avail_in, ret);
 	req->next_in = stream->next_in;
 	req->avail_in = stream->avail_in;
 	req->next_out = stream->next_out;
 	req->avail_out = stream->avail_out;
-	return 0;
+	return ret;
 }
 
 static int zlib_compress_final(struct crypto_pcomp *tfm,
@@ -195,15 +194,15 @@ static int zlib_compress_final(struct crypto_pcomp *tfm,
 		return -EINVAL;
 	}
 
+	ret = req->avail_out - stream->avail_out;
 	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
 		 stream->avail_in, stream->avail_out,
-		 req->avail_in - stream->avail_in,
-		 req->avail_out - stream->avail_out);
+		 req->avail_in - stream->avail_in, ret);
 	req->next_in = stream->next_in;
 	req->avail_in = stream->avail_in;
 	req->next_out = stream->next_out;
 	req->avail_out = stream->avail_out;
-	return 0;
+	return ret;
 }
 
 
@@ -280,15 +279,15 @@ static int zlib_decompress_update(struct crypto_pcomp *tfm,
 		return -EINVAL;
 	}
 
+	ret = req->avail_out - stream->avail_out;
 	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
 		 stream->avail_in, stream->avail_out,
-		 req->avail_in - stream->avail_in,
-		 req->avail_out - stream->avail_out);
+		 req->avail_in - stream->avail_in, ret);
 	req->next_in = stream->next_in;
 	req->avail_in = stream->avail_in;
 	req->next_out = stream->next_out;
 	req->avail_out = stream->avail_out;
-	return 0;
+	return ret;
 }
 
 static int zlib_decompress_final(struct crypto_pcomp *tfm,
@@ -328,15 +327,15 @@ static int zlib_decompress_final(struct crypto_pcomp *tfm,
 		return -EINVAL;
 	}
 
+	ret = req->avail_out - stream->avail_out;
 	pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
 		 stream->avail_in, stream->avail_out,
-		 req->avail_in - stream->avail_in,
-		 req->avail_out - stream->avail_out);
+		 req->avail_in - stream->avail_in, ret);
 	req->next_in = stream->next_in;
 	req->avail_in = stream->avail_in;
 	req->next_out = stream->next_out;
 	req->avail_out = stream->avail_out;
-	return 0;
+	return ret;
 }